Home / 222,207.43-306,686.17-125,440.78

Finding the Fourth Proportional to 222,207.43, 306,686.17 and 125,440.78

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Solution

The fourth proportional to 222,207.43, 306,686.17 and 125,440.78 is: 173,130.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,207.43 : 306,686.17 = 125,440.78 : x
  2. Step 2: Convert to fraction form
    222,207.43/306,686.17 = 125,440.78/x
  3. Step 3: Cross multiply
    222,207.43x = 306,686.17 × 125,440.78
  4. Step 4: Simplify right side
    222,207.43x = 38,470,952,223.21
  5. Step 5: Solve for x
    x = 38,470,952,223.21/222,207.43
  6. Step 6: Final answer
    x = 173,130.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.