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Finding the Fourth Proportional to 224,049.68, 309,195.56 and 128,573.84

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Solution

The fourth proportional to 224,049.68, 309,195.56 and 128,573.84 is: 177,435.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,049.68 : 309,195.56 = 128,573.84 : x
  2. Step 2: Convert to fraction form
    224,049.68/309,195.56 = 128,573.84/x
  3. Step 3: Cross multiply
    224,049.68x = 309,195.56 × 128,573.84
  4. Step 4: Simplify right side
    224,049.68x = 39,754,460,460.15
  5. Step 5: Solve for x
    x = 39,754,460,460.15/224,049.68
  6. Step 6: Final answer
    x = 177,435.92

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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.