Home / 445,024.38-667,685.61-145,518.78

Finding the Fourth Proportional to 445,024.38, 667,685.61 and 145,518.78

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Solution

The fourth proportional to 445,024.38, 667,685.61 and 145,518.78 is: 218,326.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,024.38 : 667,685.61 = 145,518.78 : x
  2. Step 2: Convert to fraction form
    445,024.38/667,685.61 = 145,518.78/x
  3. Step 3: Cross multiply
    445,024.38x = 667,685.61 × 145,518.78
  4. Step 4: Simplify right side
    445,024.38x = 97,160,795,390.76
  5. Step 5: Solve for x
    x = 97,160,795,390.76/445,024.38
  6. Step 6: Final answer
    x = 218,326.90

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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.