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Finding the Fourth Proportional to 501,510.30, 752,362.65 and 217,200.30

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Solution

The fourth proportional to 501,510.30, 752,362.65 and 217,200.30 is: 325,842.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,510.30 : 752,362.65 = 217,200.30 : x
  2. Step 2: Convert to fraction form
    501,510.30/752,362.65 = 217,200.30/x
  3. Step 3: Cross multiply
    501,510.30x = 752,362.65 × 217,200.30
  4. Step 4: Simplify right side
    501,510.30x = 163,413,393,288.80
  5. Step 5: Solve for x
    x = 163,413,393,288.80/501,510.30
  6. Step 6: Final answer
    x = 325,842.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.