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Finding the Fourth Proportional to 445,315.78, 614,469 and 254,288.62

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Solution

The fourth proportional to 445,315.78, 614,469 and 254,288.62 is: 350,880.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,315.78 : 614,469 = 254,288.62 : x
  2. Step 2: Convert to fraction form
    445,315.78/614,469 = 254,288.62/x
  3. Step 3: Cross multiply
    445,315.78x = 614,469 × 254,288.62
  4. Step 4: Simplify right side
    445,315.78x = 156,252,474,042.78
  5. Step 5: Solve for x
    x = 156,252,474,042.78/445,315.78
  6. Step 6: Final answer
    x = 350,880.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.