Home / 254,552.07-381,822.19-128,158.38

Finding the Fourth Proportional to 254,552.07, 381,822.19 and 128,158.38

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Solution

The fourth proportional to 254,552.07, 381,822.19 and 128,158.38 is: 192,234.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,552.07 : 381,822.19 = 128,158.38 : x
  2. Step 2: Convert to fraction form
    254,552.07/381,822.19 = 128,158.38/x
  3. Step 3: Cross multiply
    254,552.07x = 381,822.19 × 128,158.38
  4. Step 4: Simplify right side
    254,552.07x = 48,933,712,464.85
  5. Step 5: Solve for x
    x = 48,933,712,464.85/254,552.07
  6. Step 6: Final answer
    x = 192,234.59

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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.