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Finding the Fourth Proportional to 395,565.72, 545,881.32 and 234,499.92

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Solution

The fourth proportional to 395,565.72, 545,881.32 and 234,499.92 is: 323,610.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,565.72 : 545,881.32 = 234,499.92 : x
  2. Step 2: Convert to fraction form
    395,565.72/545,881.32 = 234,499.92/x
  3. Step 3: Cross multiply
    395,565.72x = 545,881.32 × 234,499.92
  4. Step 4: Simplify right side
    395,565.72x = 128,009,125,869.49
  5. Step 5: Solve for x
    x = 128,009,125,869.49/395,565.72
  6. Step 6: Final answer
    x = 323,610.26

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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.