Home / 316,619.52-437,138.88-282,569.28

Finding the Fourth Proportional to 316,619.52, 437,138.88 and 282,569.28

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Solution

The fourth proportional to 316,619.52, 437,138.88 and 282,569.28 is: 390,127.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,619.52 : 437,138.88 = 282,569.28 : x
  2. Step 2: Convert to fraction form
    316,619.52/437,138.88 = 282,569.28/x
  3. Step 3: Cross multiply
    316,619.52x = 437,138.88 × 282,569.28
  4. Step 4: Simplify right side
    316,619.52x = 123,522,018,581.61
  5. Step 5: Solve for x
    x = 123,522,018,581.61/316,619.52
  6. Step 6: Final answer
    x = 390,127.62

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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.