Home / 234,820.76-351,950.89-128,231.55

Finding the Fourth Proportional to 234,820.76, 351,950.89 and 128,231.55

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Solution

The fourth proportional to 234,820.76, 351,950.89 and 128,231.55 is: 192,194.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,820.76 : 351,950.89 = 128,231.55 : x
  2. Step 2: Convert to fraction form
    234,820.76/351,950.89 = 128,231.55/x
  3. Step 3: Cross multiply
    234,820.76x = 351,950.89 × 128,231.55
  4. Step 4: Simplify right side
    234,820.76x = 45,131,206,717.92
  5. Step 5: Solve for x
    x = 45,131,206,717.92/234,820.76
  6. Step 6: Final answer
    x = 192,194.28

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1.5x scale

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.