Home / 254,256.12-381,445.83-76,752.52

Finding the Fourth Proportional to 254,256.12, 381,445.83 and 76,752.52

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Solution

The fourth proportional to 254,256.12, 381,445.83 and 76,752.52 is: 115,147.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,256.12 : 381,445.83 = 76,752.52 : x
  2. Step 2: Convert to fraction form
    254,256.12/381,445.83 = 76,752.52/x
  3. Step 3: Cross multiply
    254,256.12x = 381,445.83 × 76,752.52
  4. Step 4: Simplify right side
    254,256.12x = 29,276,928,695.99
  5. Step 5: Solve for x
    x = 29,276,928,695.99/254,256.12
  6. Step 6: Final answer
    x = 115,147.39

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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.