Home / 324,731.68-487,146-100,073.44

Finding the Fourth Proportional to 324,731.68, 487,146 and 100,073.44

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Solution

The fourth proportional to 324,731.68, 487,146 and 100,073.44 is: 150,125.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,731.68 : 487,146 = 100,073.44 : x
  2. Step 2: Convert to fraction form
    324,731.68/487,146 = 100,073.44/x
  3. Step 3: Cross multiply
    324,731.68x = 487,146 × 100,073.44
  4. Step 4: Simplify right side
    324,731.68x = 48,750,376,002.24
  5. Step 5: Solve for x
    x = 48,750,376,002.24/324,731.68
  6. Step 6: Final answer
    x = 150,125.10

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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.