Home / 330,479.91-456,062.73-187,249.62

Finding the Fourth Proportional to 330,479.91, 456,062.73 and 187,249.62

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Solution

The fourth proportional to 330,479.91, 456,062.73 and 187,249.62 is: 258,404.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,479.91 : 456,062.73 = 187,249.62 : x
  2. Step 2: Convert to fraction form
    330,479.91/456,062.73 = 187,249.62/x
  3. Step 3: Cross multiply
    330,479.91x = 456,062.73 × 187,249.62
  4. Step 4: Simplify right side
    330,479.91x = 85,397,572,888.66
  5. Step 5: Solve for x
    x = 85,397,572,888.66/330,479.91
  6. Step 6: Final answer
    x = 258,404.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.