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Finding the Fourth Proportional to 172,330.38, 258,158.61 and 112,984.92

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Solution

The fourth proportional to 172,330.38, 258,158.61 and 112,984.92 is: 169,256.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,330.38 : 258,158.61 = 112,984.92 : x
  2. Step 2: Convert to fraction form
    172,330.38/258,158.61 = 112,984.92/x
  3. Step 3: Cross multiply
    172,330.38x = 258,158.61 × 112,984.92
  4. Step 4: Simplify right side
    172,330.38x = 29,168,029,898.16
  5. Step 5: Solve for x
    x = 29,168,029,898.16/172,330.38
  6. Step 6: Final answer
    x = 169,256.46

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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.