Home / 262,606.20-393,650.10-129,377.40

Finding the Fourth Proportional to 262,606.20, 393,650.10 and 129,377.40

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Solution

The fourth proportional to 262,606.20, 393,650.10 and 129,377.40 is: 193,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,606.20 : 393,650.10 = 129,377.40 : x
  2. Step 2: Convert to fraction form
    262,606.20/393,650.10 = 129,377.40/x
  3. Step 3: Cross multiply
    262,606.20x = 393,650.10 × 129,377.40
  4. Step 4: Simplify right side
    262,606.20x = 50,929,426,447.74
  5. Step 5: Solve for x
    x = 50,929,426,447.74/262,606.20
  6. Step 6: Final answer
    x = 193,938.40

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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.