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Finding the Fourth Proportional to 251,765.77, 347,444.60 and 137,052.05

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Solution

The fourth proportional to 251,765.77, 347,444.60 and 137,052.05 is: 189,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,765.77 : 347,444.60 = 137,052.05 : x
  2. Step 2: Convert to fraction form
    251,765.77/347,444.60 = 137,052.05/x
  3. Step 3: Cross multiply
    251,765.77x = 347,444.60 × 137,052.05
  4. Step 4: Simplify right side
    251,765.77x = 47,617,995,585.97
  5. Step 5: Solve for x
    x = 47,617,995,585.97/251,765.77
  6. Step 6: Final answer
    x = 189,136.10

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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.