Home / 412,518.30-618,836.79-156,445.14

Finding the Fourth Proportional to 412,518.30, 618,836.79 and 156,445.14

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Solution

The fourth proportional to 412,518.30, 618,836.79 and 156,445.14 is: 234,690.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,518.30 : 618,836.79 = 156,445.14 : x
  2. Step 2: Convert to fraction form
    412,518.30/618,836.79 = 156,445.14/x
  3. Step 3: Cross multiply
    412,518.30x = 618,836.79 × 156,445.14
  4. Step 4: Simplify right side
    412,518.30x = 96,814,008,248.70
  5. Step 5: Solve for x
    x = 96,814,008,248.70/412,518.30
  6. Step 6: Final answer
    x = 234,690.21

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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.