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Finding the Fourth Proportional to 250,695, 345,959.10 and 137,518.02

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Solution

The fourth proportional to 250,695, 345,959.10 and 137,518.02 is: 189,774.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,695 : 345,959.10 = 137,518.02 : x
  2. Step 2: Convert to fraction form
    250,695/345,959.10 = 137,518.02/x
  3. Step 3: Cross multiply
    250,695x = 345,959.10 × 137,518.02
  4. Step 4: Simplify right side
    250,695x = 47,575,610,432.98
  5. Step 5: Solve for x
    x = 47,575,610,432.98/250,695
  6. Step 6: Final answer
    x = 189,774.87

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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.