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Finding the Fourth Proportional to 156,226, 234,378.96 and 45,418

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Solution

The fourth proportional to 156,226, 234,378.96 and 45,418 is: 68,138.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,226 : 234,378.96 = 45,418 : x
  2. Step 2: Convert to fraction form
    156,226/234,378.96 = 45,418/x
  3. Step 3: Cross multiply
    156,226x = 234,378.96 × 45,418
  4. Step 4: Simplify right side
    156,226x = 10,645,023,605.28
  5. Step 5: Solve for x
    x = 10,645,023,605.28/156,226
  6. Step 6: Final answer
    x = 68,138.62

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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.