Home / 331,542.20-497,378.10-142,002.20

Finding the Fourth Proportional to 331,542.20, 497,378.10 and 142,002.20

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Solution

The fourth proportional to 331,542.20, 497,378.10 and 142,002.20 is: 213,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,542.20 : 497,378.10 = 142,002.20 : x
  2. Step 2: Convert to fraction form
    331,542.20/497,378.10 = 142,002.20/x
  3. Step 3: Cross multiply
    331,542.20x = 497,378.10 × 142,002.20
  4. Step 4: Simplify right side
    331,542.20x = 70,628,784,431.82
  5. Step 5: Solve for x
    x = 70,628,784,431.82/331,542.20
  6. Step 6: Final answer
    x = 213,031.05

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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.