Home / 442,316.80-663,475.20-161,862.40

Finding the Fourth Proportional to 442,316.80, 663,475.20 and 161,862.40

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Solution

The fourth proportional to 442,316.80, 663,475.20 and 161,862.40 is: 242,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,316.80 : 663,475.20 = 161,862.40 : x
  2. Step 2: Convert to fraction form
    442,316.80/663,475.20 = 161,862.40/x
  3. Step 3: Cross multiply
    442,316.80x = 663,475.20 × 161,862.40
  4. Step 4: Simplify right side
    442,316.80x = 107,391,688,212.48
  5. Step 5: Solve for x
    x = 107,391,688,212.48/442,316.80
  6. Step 6: Final answer
    x = 242,793.60

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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.