Home / 374,492.20-561,738.30-137,785.90

Finding the Fourth Proportional to 374,492.20, 561,738.30 and 137,785.90

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Solution

The fourth proportional to 374,492.20, 561,738.30 and 137,785.90 is: 206,678.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,492.20 : 561,738.30 = 137,785.90 : x
  2. Step 2: Convert to fraction form
    374,492.20/561,738.30 = 137,785.90/x
  3. Step 3: Cross multiply
    374,492.20x = 561,738.30 × 137,785.90
  4. Step 4: Simplify right side
    374,492.20x = 77,399,617,229.97
  5. Step 5: Solve for x
    x = 77,399,617,229.97/374,492.20
  6. Step 6: Final answer
    x = 206,678.85

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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.