Home / 402,151.28-603,256.20-135,823.28

Finding the Fourth Proportional to 402,151.28, 603,256.20 and 135,823.28

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Solution

The fourth proportional to 402,151.28, 603,256.20 and 135,823.28 is: 203,744.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,151.28 : 603,256.20 = 135,823.28 : x
  2. Step 2: Convert to fraction form
    402,151.28/603,256.20 = 135,823.28/x
  3. Step 3: Cross multiply
    402,151.28x = 603,256.20 × 135,823.28
  4. Step 4: Simplify right side
    402,151.28x = 81,936,235,764.34
  5. Step 5: Solve for x
    x = 81,936,235,764.34/402,151.28
  6. Step 6: Final answer
    x = 203,744.81

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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.