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Finding the Fourth Proportional to 252,250.57, 348,101.09 and 137,530.21

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Solution

The fourth proportional to 252,250.57, 348,101.09 and 137,530.21 is: 189,789.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,250.57 : 348,101.09 = 137,530.21 : x
  2. Step 2: Convert to fraction form
    252,250.57/348,101.09 = 137,530.21/x
  3. Step 3: Cross multiply
    252,250.57x = 348,101.09 × 137,530.21
  4. Step 4: Simplify right side
    252,250.57x = 47,874,416,008.93
  5. Step 5: Solve for x
    x = 47,874,416,008.93/252,250.57
  6. Step 6: Final answer
    x = 189,789.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.