Home / 438,731.29-657,966.16-186,007.74

Finding the Fourth Proportional to 438,731.29, 657,966.16 and 186,007.74

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Solution

The fourth proportional to 438,731.29, 657,966.16 and 186,007.74 is: 278,956.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,731.29 : 657,966.16 = 186,007.74 : x
  2. Step 2: Convert to fraction form
    438,731.29/657,966.16 = 186,007.74/x
  3. Step 3: Cross multiply
    438,731.29x = 657,966.16 × 186,007.74
  4. Step 4: Simplify right side
    438,731.29x = 122,386,798,418.08
  5. Step 5: Solve for x
    x = 122,386,798,418.08/438,731.29
  6. Step 6: Final answer
    x = 278,956.17

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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.