Home / 256,340.43-384,565.16-87,815.52

Finding the Fourth Proportional to 256,340.43, 384,565.16 and 87,815.52

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Solution

The fourth proportional to 256,340.43, 384,565.16 and 87,815.52 is: 131,741.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,340.43 : 384,565.16 = 87,815.52 : x
  2. Step 2: Convert to fraction form
    256,340.43/384,565.16 = 87,815.52/x
  3. Step 3: Cross multiply
    256,340.43x = 384,565.16 × 87,815.52
  4. Step 4: Simplify right side
    256,340.43x = 33,770,789,718.82
  5. Step 5: Solve for x
    x = 33,770,789,718.82/256,340.43
  6. Step 6: Final answer
    x = 131,741.96

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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.