Home / 319,226.20-478,839.30-141,544.60

Finding the Fourth Proportional to 319,226.20, 478,839.30 and 141,544.60

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Solution

The fourth proportional to 319,226.20, 478,839.30 and 141,544.60 is: 212,316.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,226.20 : 478,839.30 = 141,544.60 : x
  2. Step 2: Convert to fraction form
    319,226.20/478,839.30 = 141,544.60/x
  3. Step 3: Cross multiply
    319,226.20x = 478,839.30 × 141,544.60
  4. Step 4: Simplify right side
    319,226.20x = 67,777,117,182.78
  5. Step 5: Solve for x
    x = 67,777,117,182.78/319,226.20
  6. Step 6: Final answer
    x = 212,316.90

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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.