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Finding the Fourth Proportional to 169,356, 254,034.12 and 43,005.72

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Solution

The fourth proportional to 169,356, 254,034.12 and 43,005.72 is: 64,508.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,356 : 254,034.12 = 43,005.72 : x
  2. Step 2: Convert to fraction form
    169,356/254,034.12 = 43,005.72/x
  3. Step 3: Cross multiply
    169,356x = 254,034.12 × 43,005.72
  4. Step 4: Simplify right side
    169,356x = 10,924,920,235.17
  5. Step 5: Solve for x
    x = 10,924,920,235.17/169,356
  6. Step 6: Final answer
    x = 64,508.61

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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.