Home / 331,246.20-496,869.30-81,928.20

Finding the Fourth Proportional to 331,246.20, 496,869.30 and 81,928.20

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Solution

The fourth proportional to 331,246.20, 496,869.30 and 81,928.20 is: 122,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,246.20 : 496,869.30 = 81,928.20 : x
  2. Step 2: Convert to fraction form
    331,246.20/496,869.30 = 81,928.20/x
  3. Step 3: Cross multiply
    331,246.20x = 496,869.30 × 81,928.20
  4. Step 4: Simplify right side
    331,246.20x = 40,707,607,384.26
  5. Step 5: Solve for x
    x = 40,707,607,384.26/331,246.20
  6. Step 6: Final answer
    x = 122,892.30

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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.