Home / 306,024.20-458,720.40-137,625.20

Finding the Fourth Proportional to 306,024.20, 458,720.40 and 137,625.20

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Solution

The fourth proportional to 306,024.20, 458,720.40 and 137,625.20 is: 206,295.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,024.20 : 458,720.40 = 137,625.20 : x
  2. Step 2: Convert to fraction form
    306,024.20/458,720.40 = 137,625.20/x
  3. Step 3: Cross multiply
    306,024.20x = 458,720.40 × 137,625.20
  4. Step 4: Simplify right side
    306,024.20x = 63,131,486,794.08
  5. Step 5: Solve for x
    x = 63,131,486,794.08/306,024.20
  6. Step 6: Final answer
    x = 206,295.73

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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.