Home / 508,948.30-763,531.80-153,998.20

Finding the Fourth Proportional to 508,948.30, 763,531.80 and 153,998.20

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Solution

The fourth proportional to 508,948.30, 763,531.80 and 153,998.20 is: 231,030.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,948.30 : 763,531.80 = 153,998.20 : x
  2. Step 2: Convert to fraction form
    508,948.30/763,531.80 = 153,998.20/x
  3. Step 3: Cross multiply
    508,948.30x = 763,531.80 × 153,998.20
  4. Step 4: Simplify right side
    508,948.30x = 117,582,522,842.76
  5. Step 5: Solve for x
    x = 117,582,522,842.76/508,948.30
  6. Step 6: Final answer
    x = 231,030.39

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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.