Home / 268,300.27-402,469.04-90,747.26

Finding the Fourth Proportional to 268,300.27, 402,469.04 and 90,747.26

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Solution

The fourth proportional to 268,300.27, 402,469.04 and 90,747.26 is: 136,127.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,300.27 : 402,469.04 = 90,747.26 : x
  2. Step 2: Convert to fraction form
    268,300.27/402,469.04 = 90,747.26/x
  3. Step 3: Cross multiply
    268,300.27x = 402,469.04 × 90,747.26
  4. Step 4: Simplify right side
    268,300.27x = 36,522,962,614.83
  5. Step 5: Solve for x
    x = 36,522,962,614.83/268,300.27
  6. Step 6: Final answer
    x = 136,127.19

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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.