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Finding the Fourth Proportional to 283,385.72, 391,260.48 and 176,115.80

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Solution

The fourth proportional to 283,385.72, 391,260.48 and 176,115.80 is: 243,156.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,385.72 : 391,260.48 = 176,115.80 : x
  2. Step 2: Convert to fraction form
    283,385.72/391,260.48 = 176,115.80/x
  3. Step 3: Cross multiply
    283,385.72x = 391,260.48 × 176,115.80
  4. Step 4: Simplify right side
    283,385.72x = 68,907,152,443.58
  5. Step 5: Solve for x
    x = 68,907,152,443.58/283,385.72
  6. Step 6: Final answer
    x = 243,156.76

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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.