Home / 330,711.16-496,065.64-90,825.28

Finding the Fourth Proportional to 330,711.16, 496,065.64 and 90,825.28

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Solution

The fourth proportional to 330,711.16, 496,065.64 and 90,825.28 is: 136,237.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,711.16 : 496,065.64 = 90,825.28 : x
  2. Step 2: Convert to fraction form
    330,711.16/496,065.64 = 90,825.28/x
  3. Step 3: Cross multiply
    330,711.16x = 496,065.64 × 90,825.28
  4. Step 4: Simplify right side
    330,711.16x = 45,055,300,651.38
  5. Step 5: Solve for x
    x = 45,055,300,651.38/330,711.16
  6. Step 6: Final answer
    x = 136,237.62

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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.