Home / 257,899.88-386,727.78-95,740.64

Finding the Fourth Proportional to 257,899.88, 386,727.78 and 95,740.64

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Solution

The fourth proportional to 257,899.88, 386,727.78 and 95,740.64 is: 143,565.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,899.88 : 386,727.78 = 95,740.64 : x
  2. Step 2: Convert to fraction form
    257,899.88/386,727.78 = 95,740.64/x
  3. Step 3: Cross multiply
    257,899.88x = 386,727.78 × 95,740.64
  4. Step 4: Simplify right side
    257,899.88x = 37,025,565,162.98
  5. Step 5: Solve for x
    x = 37,025,565,162.98/257,899.88
  6. Step 6: Final answer
    x = 143,565.65

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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.