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Finding the Fourth Proportional to 295,695.70, 443,543.55 and 137,940.10

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Solution

The fourth proportional to 295,695.70, 443,543.55 and 137,940.10 is: 206,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,695.70 : 443,543.55 = 137,940.10 : x
  2. Step 2: Convert to fraction form
    295,695.70/443,543.55 = 137,940.10/x
  3. Step 3: Cross multiply
    295,695.70x = 443,543.55 × 137,940.10
  4. Step 4: Simplify right side
    295,695.70x = 61,182,441,641.36
  5. Step 5: Solve for x
    x = 61,182,441,641.36/295,695.70
  6. Step 6: Final answer
    x = 206,910.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.