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Finding the Fourth Proportional to 231,587.28, 319,590.42 and 125,603.28

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Solution

The fourth proportional to 231,587.28, 319,590.42 and 125,603.28 is: 173,332.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,587.28 : 319,590.42 = 125,603.28 : x
  2. Step 2: Convert to fraction form
    231,587.28/319,590.42 = 125,603.28/x
  3. Step 3: Cross multiply
    231,587.28x = 319,590.42 × 125,603.28
  4. Step 4: Simplify right side
    231,587.28x = 40,141,605,008.58
  5. Step 5: Solve for x
    x = 40,141,605,008.58/231,587.28
  6. Step 6: Final answer
    x = 173,332.51

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