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Finding the Fourth Proportional to 435,449.20, 653,215.10 and 169,230.28

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Solution

The fourth proportional to 435,449.20, 653,215.10 and 169,230.28 is: 253,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,449.20 : 653,215.10 = 169,230.28 : x
  2. Step 2: Convert to fraction form
    435,449.20/653,215.10 = 169,230.28/x
  3. Step 3: Cross multiply
    435,449.20x = 653,215.10 × 169,230.28
  4. Step 4: Simplify right side
    435,449.20x = 110,543,774,273.23
  5. Step 5: Solve for x
    x = 110,543,774,273.23/435,449.20
  6. Step 6: Final answer
    x = 253,861.47

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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.