Home / 254,345.40-381,578.04-76,853.88

Finding the Fourth Proportional to 254,345.40, 381,578.04 and 76,853.88

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Solution

The fourth proportional to 254,345.40, 381,578.04 and 76,853.88 is: 115,298.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,345.40 : 381,578.04 = 76,853.88 : x
  2. Step 2: Convert to fraction form
    254,345.40/381,578.04 = 76,853.88/x
  3. Step 3: Cross multiply
    254,345.40x = 381,578.04 × 76,853.88
  4. Step 4: Simplify right side
    254,345.40x = 29,325,752,896.80
  5. Step 5: Solve for x
    x = 29,325,752,896.80/254,345.40
  6. Step 6: Final answer
    x = 115,298.93

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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.