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Finding the Fourth Proportional to 224,336.68, 309,564.66 and 128,834.44

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Solution

The fourth proportional to 224,336.68, 309,564.66 and 128,834.44 is: 177,780.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,336.68 : 309,564.66 = 128,834.44 : x
  2. Step 2: Convert to fraction form
    224,336.68/309,564.66 = 128,834.44/x
  3. Step 3: Cross multiply
    224,336.68x = 309,564.66 × 128,834.44
  4. Step 4: Simplify right side
    224,336.68x = 39,882,589,614.89
  5. Step 5: Solve for x
    x = 39,882,589,614.89/224,336.68
  6. Step 6: Final answer
    x = 177,780.07

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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.