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Finding the Fourth Proportional to 168,008.20, 251,720.70 and 157,510.60

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Solution

The fourth proportional to 168,008.20, 251,720.70 and 157,510.60 is: 235,992.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,008.20 : 251,720.70 = 157,510.60 : x
  2. Step 2: Convert to fraction form
    168,008.20/251,720.70 = 157,510.60/x
  3. Step 3: Cross multiply
    168,008.20x = 251,720.70 × 157,510.60
  4. Step 4: Simplify right side
    168,008.20x = 39,648,678,489.42
  5. Step 5: Solve for x
    x = 39,648,678,489.42/168,008.20
  6. Step 6: Final answer
    x = 235,992.52

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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.