Home / 256,195.85-384,528.15-129,923.25

Finding the Fourth Proportional to 256,195.85, 384,528.15 and 129,923.25

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Solution

The fourth proportional to 256,195.85, 384,528.15 and 129,923.25 is: 195,003.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,195.85 : 384,528.15 = 129,923.25 : x
  2. Step 2: Convert to fraction form
    256,195.85/384,528.15 = 129,923.25/x
  3. Step 3: Cross multiply
    256,195.85x = 384,528.15 × 129,923.25
  4. Step 4: Simplify right side
    256,195.85x = 49,959,146,964.49
  5. Step 5: Solve for x
    x = 49,959,146,964.49/256,195.85
  6. Step 6: Final answer
    x = 195,003.74

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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.