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Finding the Fourth Proportional to 502,456.40, 753,684.60 and 147,506.30

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Solution

The fourth proportional to 502,456.40, 753,684.60 and 147,506.30 is: 221,259.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,456.40 : 753,684.60 = 147,506.30 : x
  2. Step 2: Convert to fraction form
    502,456.40/753,684.60 = 147,506.30/x
  3. Step 3: Cross multiply
    502,456.40x = 753,684.60 × 147,506.30
  4. Step 4: Simplify right side
    502,456.40x = 111,173,226,712.98
  5. Step 5: Solve for x
    x = 111,173,226,712.98/502,456.40
  6. Step 6: Final answer
    x = 221,259.45

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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.