Home / 445,166.28-667,750.50-129,630.84

Finding the Fourth Proportional to 445,166.28, 667,750.50 and 129,630.84

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Solution

The fourth proportional to 445,166.28, 667,750.50 and 129,630.84 is: 194,446.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,166.28 : 667,750.50 = 129,630.84 : x
  2. Step 2: Convert to fraction form
    445,166.28/667,750.50 = 129,630.84/x
  3. Step 3: Cross multiply
    445,166.28x = 667,750.50 × 129,630.84
  4. Step 4: Simplify right side
    445,166.28x = 86,561,058,225.42
  5. Step 5: Solve for x
    x = 86,561,058,225.42/445,166.28
  6. Step 6: Final answer
    x = 194,446.57

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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.