Home / 442,918.40-664,377.60-162,399.20

Finding the Fourth Proportional to 442,918.40, 664,377.60 and 162,399.20

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Solution

The fourth proportional to 442,918.40, 664,377.60 and 162,399.20 is: 243,598.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,918.40 : 664,377.60 = 162,399.20 : x
  2. Step 2: Convert to fraction form
    442,918.40/664,377.60 = 162,399.20/x
  3. Step 3: Cross multiply
    442,918.40x = 664,377.60 × 162,399.20
  4. Step 4: Simplify right side
    442,918.40x = 107,894,390,737.92
  5. Step 5: Solve for x
    x = 107,894,390,737.92/442,918.40
  6. Step 6: Final answer
    x = 243,598.80

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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.