Home / 423,972.27-636,046.02-139,680.09

Finding the Fourth Proportional to 423,972.27, 636,046.02 and 139,680.09

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Solution

The fourth proportional to 423,972.27, 636,046.02 and 139,680.09 is: 209,549.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,972.27 : 636,046.02 = 139,680.09 : x
  2. Step 2: Convert to fraction form
    423,972.27/636,046.02 = 139,680.09/x
  3. Step 3: Cross multiply
    423,972.27x = 636,046.02 × 139,680.09
  4. Step 4: Simplify right side
    423,972.27x = 88,842,965,317.74
  5. Step 5: Solve for x
    x = 88,842,965,317.74/423,972.27
  6. Step 6: Final answer
    x = 209,549.00

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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.