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Finding the Fourth Proportional to 253,402.92, 349,699.14 and 140,236.20

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Solution

The fourth proportional to 253,402.92, 349,699.14 and 140,236.20 is: 193,527.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,402.92 : 349,699.14 = 140,236.20 : x
  2. Step 2: Convert to fraction form
    253,402.92/349,699.14 = 140,236.20/x
  3. Step 3: Cross multiply
    253,402.92x = 349,699.14 × 140,236.20
  4. Step 4: Simplify right side
    253,402.92x = 49,040,478,536.87
  5. Step 5: Solve for x
    x = 49,040,478,536.87/253,402.92
  6. Step 6: Final answer
    x = 193,527.68

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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.