Home / 412,788.32-618,977.28-132,269.12

Finding the Fourth Proportional to 412,788.32, 618,977.28 and 132,269.12

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Solution

The fourth proportional to 412,788.32, 618,977.28 and 132,269.12 is: 198,337.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,788.32 : 618,977.28 = 132,269.12 : x
  2. Step 2: Convert to fraction form
    412,788.32/618,977.28 = 132,269.12/x
  3. Step 3: Cross multiply
    412,788.32x = 618,977.28 × 132,269.12
  4. Step 4: Simplify right side
    412,788.32x = 81,871,580,125.59
  5. Step 5: Solve for x
    x = 81,871,580,125.59/412,788.32
  6. Step 6: Final answer
    x = 198,337.93

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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.