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Finding the Fourth Proportional to 138,173.32, 207,259.50 and 38,333.32

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Solution

The fourth proportional to 138,173.32, 207,259.50 and 38,333.32 is: 57,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,173.32 : 207,259.50 = 38,333.32 : x
  2. Step 2: Convert to fraction form
    138,173.32/207,259.50 = 38,333.32/x
  3. Step 3: Cross multiply
    138,173.32x = 207,259.50 × 38,333.32
  4. Step 4: Simplify right side
    138,173.32x = 7,944,944,736.54
  5. Step 5: Solve for x
    x = 7,944,944,736.54/138,173.32
  6. Step 6: Final answer
    x = 57,499.85

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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.