Home / 402,948.60-603,731.70-192,132.60

Finding the Fourth Proportional to 402,948.60, 603,731.70 and 192,132.60

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Solution

The fourth proportional to 402,948.60, 603,731.70 and 192,132.60 is: 287,869.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,948.60 : 603,731.70 = 192,132.60 : x
  2. Step 2: Convert to fraction form
    402,948.60/603,731.70 = 192,132.60/x
  3. Step 3: Cross multiply
    402,948.60x = 603,731.70 × 192,132.60
  4. Step 4: Simplify right side
    402,948.60x = 115,996,541,223.42
  5. Step 5: Solve for x
    x = 115,996,541,223.42/402,948.60
  6. Step 6: Final answer
    x = 287,869.32

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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.