Home / 402,721.16-603,704.48-136,295.15

Finding the Fourth Proportional to 402,721.16, 603,704.48 and 136,295.15

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Solution

The fourth proportional to 402,721.16, 603,704.48 and 136,295.15 is: 204,315.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,721.16 : 603,704.48 = 136,295.15 : x
  2. Step 2: Convert to fraction form
    402,721.16/603,704.48 = 136,295.15/x
  3. Step 3: Cross multiply
    402,721.16x = 603,704.48 × 136,295.15
  4. Step 4: Simplify right side
    402,721.16x = 82,281,988,957.27
  5. Step 5: Solve for x
    x = 82,281,988,957.27/402,721.16
  6. Step 6: Final answer
    x = 204,315.04

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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.