Home / 331,828.20-497,742.30-82,510.20

Finding the Fourth Proportional to 331,828.20, 497,742.30 and 82,510.20

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Solution

The fourth proportional to 331,828.20, 497,742.30 and 82,510.20 is: 123,765.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,828.20 : 497,742.30 = 82,510.20 : x
  2. Step 2: Convert to fraction form
    331,828.20/497,742.30 = 82,510.20/x
  3. Step 3: Cross multiply
    331,828.20x = 497,742.30 × 82,510.20
  4. Step 4: Simplify right side
    331,828.20x = 41,068,816,721.46
  5. Step 5: Solve for x
    x = 41,068,816,721.46/331,828.20
  6. Step 6: Final answer
    x = 123,765.30

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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.