Home / 330,711.66-496,066.38-90,825.78

Finding the Fourth Proportional to 330,711.66, 496,066.38 and 90,825.78

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Solution

The fourth proportional to 330,711.66, 496,066.38 and 90,825.78 is: 136,238.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,711.66 : 496,066.38 = 90,825.78 : x
  2. Step 2: Convert to fraction form
    330,711.66/496,066.38 = 90,825.78/x
  3. Step 3: Cross multiply
    330,711.66x = 496,066.38 × 90,825.78
  4. Step 4: Simplify right side
    330,711.66x = 45,055,615,895.28
  5. Step 5: Solve for x
    x = 45,055,615,895.28/330,711.66
  6. Step 6: Final answer
    x = 136,238.37

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1.5x scale

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.