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Finding the Fourth Proportional to 395,174.08, 592,463 and 128,775.52

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Solution

The fourth proportional to 395,174.08, 592,463 and 128,775.52 is: 193,066.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,174.08 : 592,463 = 128,775.52 : x
  2. Step 2: Convert to fraction form
    395,174.08/592,463 = 128,775.52/x
  3. Step 3: Cross multiply
    395,174.08x = 592,463 × 128,775.52
  4. Step 4: Simplify right side
    395,174.08x = 76,294,730,905.76
  5. Step 5: Solve for x
    x = 76,294,730,905.76/395,174.08
  6. Step 6: Final answer
    x = 193,066.13

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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.