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Finding the Fourth Proportional to 253,885.80, 350,361.68 and 140,708.55

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Solution

The fourth proportional to 253,885.80, 350,361.68 and 140,708.55 is: 194,177.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,885.80 : 350,361.68 = 140,708.55 : x
  2. Step 2: Convert to fraction form
    253,885.80/350,361.68 = 140,708.55/x
  3. Step 3: Cross multiply
    253,885.80x = 350,361.68 × 140,708.55
  4. Step 4: Simplify right side
    253,885.80x = 49,298,883,264.82
  5. Step 5: Solve for x
    x = 49,298,883,264.82/253,885.80
  6. Step 6: Final answer
    x = 194,177.39

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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.