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Finding the Fourth Proportional to 445,252.19, 667,329.59 and 253,287.57

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Solution

The fourth proportional to 445,252.19, 667,329.59 and 253,287.57 is: 379,619.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,252.19 : 667,329.59 = 253,287.57 : x
  2. Step 2: Convert to fraction form
    445,252.19/667,329.59 = 253,287.57/x
  3. Step 3: Cross multiply
    445,252.19x = 667,329.59 × 253,287.57
  4. Step 4: Simplify right side
    445,252.19x = 169,026,291,951.16
  5. Step 5: Solve for x
    x = 169,026,291,951.16/445,252.19
  6. Step 6: Final answer
    x = 379,619.23

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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.