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Finding the Fourth Proportional to 172,287.14, 258,430.56 and 53,967.71

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Solution

The fourth proportional to 172,287.14, 258,430.56 and 53,967.71 is: 80,951.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,287.14 : 258,430.56 = 53,967.71 : x
  2. Step 2: Convert to fraction form
    172,287.14/258,430.56 = 53,967.71/x
  3. Step 3: Cross multiply
    172,287.14x = 258,430.56 × 53,967.71
  4. Step 4: Simplify right side
    172,287.14x = 13,946,906,163.29
  5. Step 5: Solve for x
    x = 13,946,906,163.29/172,287.14
  6. Step 6: Final answer
    x = 80,951.52

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1.5x scale

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.