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Finding the Fourth Proportional to 387,272.96, 581,159.04 and 165,658.88

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Solution

The fourth proportional to 387,272.96, 581,159.04 and 165,658.88 is: 248,595.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,272.96 : 581,159.04 = 165,658.88 : x
  2. Step 2: Convert to fraction form
    387,272.96/581,159.04 = 165,658.88/x
  3. Step 3: Cross multiply
    387,272.96x = 581,159.04 × 165,658.88
  4. Step 4: Simplify right side
    387,272.96x = 96,274,155,668.28
  5. Step 5: Solve for x
    x = 96,274,155,668.28/387,272.96
  6. Step 6: Final answer
    x = 248,595.09

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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.