Home / 401,085.90-553,445.91-239,882.13

Finding the Fourth Proportional to 401,085.90, 553,445.91 and 239,882.13

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Solution

The fourth proportional to 401,085.90, 553,445.91 and 239,882.13 is: 331,005.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,085.90 : 553,445.91 = 239,882.13 : x
  2. Step 2: Convert to fraction form
    401,085.90/553,445.91 = 239,882.13/x
  3. Step 3: Cross multiply
    401,085.90x = 553,445.91 × 239,882.13
  4. Step 4: Simplify right side
    401,085.90x = 132,761,783,730.59
  5. Step 5: Solve for x
    x = 132,761,783,730.59/401,085.90
  6. Step 6: Final answer
    x = 331,005.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.