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Finding the Fourth Proportional to 235,854.20, 353,781.30 and 157,122.20

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Solution

The fourth proportional to 235,854.20, 353,781.30 and 157,122.20 is: 235,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,854.20 : 353,781.30 = 157,122.20 : x
  2. Step 2: Convert to fraction form
    235,854.20/353,781.30 = 157,122.20/x
  3. Step 3: Cross multiply
    235,854.20x = 353,781.30 × 157,122.20
  4. Step 4: Simplify right side
    235,854.20x = 55,586,896,174.86
  5. Step 5: Solve for x
    x = 55,586,896,174.86/235,854.20
  6. Step 6: Final answer
    x = 235,683.30

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