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Finding the Fourth Proportional to 283,880.88, 391,348.50 and 223,346.40

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Solution

The fourth proportional to 283,880.88, 391,348.50 and 223,346.40 is: 307,897.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,880.88 : 391,348.50 = 223,346.40 : x
  2. Step 2: Convert to fraction form
    283,880.88/391,348.50 = 223,346.40/x
  3. Step 3: Cross multiply
    283,880.88x = 391,348.50 × 223,346.40
  4. Step 4: Simplify right side
    283,880.88x = 87,406,278,620.40
  5. Step 5: Solve for x
    x = 87,406,278,620.40/283,880.88
  6. Step 6: Final answer
    x = 307,897.73

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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.