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Finding the Fourth Proportional to 253,706.46, 350,099.89 and 138,962.22

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Solution

The fourth proportional to 253,706.46, 350,099.89 and 138,962.22 is: 191,759.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,706.46 : 350,099.89 = 138,962.22 : x
  2. Step 2: Convert to fraction form
    253,706.46/350,099.89 = 138,962.22/x
  3. Step 3: Cross multiply
    253,706.46x = 350,099.89 × 138,962.22
  4. Step 4: Simplify right side
    253,706.46x = 48,650,655,490.85
  5. Step 5: Solve for x
    x = 48,650,655,490.85/253,706.46
  6. Step 6: Final answer
    x = 191,759.63

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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.