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Finding the Fourth Proportional to 353,845.22, 488,326.92 and 266,473.90

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Solution

The fourth proportional to 353,845.22, 488,326.92 and 266,473.90 is: 367,749.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,845.22 : 488,326.92 = 266,473.90 : x
  2. Step 2: Convert to fraction form
    353,845.22/488,326.92 = 266,473.90/x
  3. Step 3: Cross multiply
    353,845.22x = 488,326.92 × 266,473.90
  4. Step 4: Simplify right side
    353,845.22x = 130,126,376,405.75
  5. Step 5: Solve for x
    x = 130,126,376,405.75/353,845.22
  6. Step 6: Final answer
    x = 367,749.43

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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.