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Finding the Fourth Proportional to 224,049.93, 309,195.91 and 128,574.09

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Solution

The fourth proportional to 224,049.93, 309,195.91 and 128,574.09 is: 177,436.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,049.93 : 309,195.91 = 128,574.09 : x
  2. Step 2: Convert to fraction form
    224,049.93/309,195.91 = 128,574.09/x
  3. Step 3: Cross multiply
    224,049.93x = 309,195.91 × 128,574.09
  4. Step 4: Simplify right side
    224,049.93x = 39,754,582,759.97
  5. Step 5: Solve for x
    x = 39,754,582,759.97/224,049.93
  6. Step 6: Final answer
    x = 177,436.27

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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.