Home / 254,247.06-381,359.65-76,748.77

Finding the Fourth Proportional to 254,247.06, 381,359.65 and 76,748.77

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Solution

The fourth proportional to 254,247.06, 381,359.65 and 76,748.77 is: 115,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,247.06 : 381,359.65 = 76,748.77 : x
  2. Step 2: Convert to fraction form
    254,247.06/381,359.65 = 76,748.77/x
  3. Step 3: Cross multiply
    254,247.06x = 381,359.65 × 76,748.77
  4. Step 4: Simplify right side
    254,247.06x = 29,268,884,065.13
  5. Step 5: Solve for x
    x = 29,268,884,065.13/254,247.06
  6. Step 6: Final answer
    x = 115,119.85

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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.