Home / 402,275.15-603,234.53-135,963.35

Finding the Fourth Proportional to 402,275.15, 603,234.53 and 135,963.35

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Solution

The fourth proportional to 402,275.15, 603,234.53 and 135,963.35 is: 203,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,275.15 : 603,234.53 = 135,963.35 : x
  2. Step 2: Convert to fraction form
    402,275.15/603,234.53 = 135,963.35/x
  3. Step 3: Cross multiply
    402,275.15x = 603,234.53 × 135,963.35
  4. Step 4: Simplify right side
    402,275.15x = 82,017,786,854.66
  5. Step 5: Solve for x
    x = 82,017,786,854.66/402,275.15
  6. Step 6: Final answer
    x = 203,884.80

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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.