Home / 319,330.20-479,168.10-141,864.60

Finding the Fourth Proportional to 319,330.20, 479,168.10 and 141,864.60

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Solution

The fourth proportional to 319,330.20, 479,168.10 and 141,864.60 is: 212,873.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,330.20 : 479,168.10 = 141,864.60 : x
  2. Step 2: Convert to fraction form
    319,330.20/479,168.10 = 141,864.60/x
  3. Step 3: Cross multiply
    319,330.20x = 479,168.10 × 141,864.60
  4. Step 4: Simplify right side
    319,330.20x = 67,976,990,839.26
  5. Step 5: Solve for x
    x = 67,976,990,839.26/319,330.20
  6. Step 6: Final answer
    x = 212,873.67

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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.