Home / 331,447.24-497,229.30-121,378.60

Finding the Fourth Proportional to 331,447.24, 497,229.30 and 121,378.60

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Solution

The fourth proportional to 331,447.24, 497,229.30 and 121,378.60 is: 182,089.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,447.24 : 497,229.30 = 121,378.60 : x
  2. Step 2: Convert to fraction form
    331,447.24/497,229.30 = 121,378.60/x
  3. Step 3: Cross multiply
    331,447.24x = 497,229.30 × 121,378.60
  4. Step 4: Simplify right side
    331,447.24x = 60,352,996,312.98
  5. Step 5: Solve for x
    x = 60,352,996,312.98/331,447.24
  6. Step 6: Final answer
    x = 182,089.30

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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.