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Finding the Fourth Proportional to 253,373.20, 349,660.52 and 140,203.92

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Solution

The fourth proportional to 253,373.20, 349,660.52 and 140,203.92 is: 193,484.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,373.20 : 349,660.52 = 140,203.92 : x
  2. Step 2: Convert to fraction form
    253,373.20/349,660.52 = 140,203.92/x
  3. Step 3: Cross multiply
    253,373.20x = 349,660.52 × 140,203.92
  4. Step 4: Simplify right side
    253,373.20x = 49,023,775,573.24
  5. Step 5: Solve for x
    x = 49,023,775,573.24/253,373.20
  6. Step 6: Final answer
    x = 193,484.46

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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.