Home / 690,180.30-1,035,305.55-216,870.30

Finding the Fourth Proportional to 690,180.30, 1,035,305.55 and 216,870.30

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Solution

The fourth proportional to 690,180.30, 1,035,305.55 and 216,870.30 is: 325,316.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,180.30 : 1,035,305.55 = 216,870.30 : x
  2. Step 2: Convert to fraction form
    690,180.30/1,035,305.55 = 216,870.30/x
  3. Step 3: Cross multiply
    690,180.30x = 1,035,305.55 × 216,870.30
  4. Step 4: Simplify right side
    690,180.30x = 224,527,025,220.17
  5. Step 5: Solve for x
    x = 224,527,025,220.17/690,180.30
  6. Step 6: Final answer
    x = 325,316.48

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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.