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Finding the Fourth Proportional to 243,573.72, 365,691.90 and 137,032.65

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Solution

The fourth proportional to 243,573.72, 365,691.90 and 137,032.65 is: 205,735.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,573.72 : 365,691.90 = 137,032.65 : x
  2. Step 2: Convert to fraction form
    243,573.72/365,691.90 = 137,032.65/x
  3. Step 3: Cross multiply
    243,573.72x = 365,691.90 × 137,032.65
  4. Step 4: Simplify right side
    243,573.72x = 50,111,730,654.41
  5. Step 5: Solve for x
    x = 50,111,730,654.41/243,573.72
  6. Step 6: Final answer
    x = 205,735.38

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1.5x scale

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.