Home / 254,255.12-381,444.33-76,751.52

Finding the Fourth Proportional to 254,255.12, 381,444.33 and 76,751.52

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Solution

The fourth proportional to 254,255.12, 381,444.33 and 76,751.52 is: 115,145.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,255.12 : 381,444.33 = 76,751.52 : x
  2. Step 2: Convert to fraction form
    254,255.12/381,444.33 = 76,751.52/x
  3. Step 3: Cross multiply
    254,255.12x = 381,444.33 × 76,751.52
  4. Step 4: Simplify right side
    254,255.12x = 29,276,432,122.88
  5. Step 5: Solve for x
    x = 29,276,432,122.88/254,255.12
  6. Step 6: Final answer
    x = 115,145.89

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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.