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Finding the Fourth Proportional to 475,176.72, 655,743.76 and 284,190.12

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Solution

The fourth proportional to 475,176.72, 655,743.76 and 284,190.12 is: 392,182.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,176.72 : 655,743.76 = 284,190.12 : x
  2. Step 2: Convert to fraction form
    475,176.72/655,743.76 = 284,190.12/x
  3. Step 3: Cross multiply
    475,176.72x = 655,743.76 × 284,190.12
  4. Step 4: Simplify right side
    475,176.72x = 186,355,897,843.65
  5. Step 5: Solve for x
    x = 186,355,897,843.65/475,176.72
  6. Step 6: Final answer
    x = 392,182.30

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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.