Home / 385,424.34-578,149.20-132,702.18

Finding the Fourth Proportional to 385,424.34, 578,149.20 and 132,702.18

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Solution

The fourth proportional to 385,424.34, 578,149.20 and 132,702.18 is: 199,057.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,424.34 : 578,149.20 = 132,702.18 : x
  2. Step 2: Convert to fraction form
    385,424.34/578,149.20 = 132,702.18/x
  3. Step 3: Cross multiply
    385,424.34x = 578,149.20 × 132,702.18
  4. Step 4: Simplify right side
    385,424.34x = 76,721,659,205.26
  5. Step 5: Solve for x
    x = 76,721,659,205.26/385,424.34
  6. Step 6: Final answer
    x = 199,057.64

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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.