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Finding the Fourth Proportional to 222,820.80, 307,494 and 127,331

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Solution

The fourth proportional to 222,820.80, 307,494 and 127,331 is: 175,717.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,820.80 : 307,494 = 127,331 : x
  2. Step 2: Convert to fraction form
    222,820.80/307,494 = 127,331/x
  3. Step 3: Cross multiply
    222,820.80x = 307,494 × 127,331
  4. Step 4: Simplify right side
    222,820.80x = 39,153,518,514
  5. Step 5: Solve for x
    x = 39,153,518,514/222,820.80
  6. Step 6: Final answer
    x = 175,717.52

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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.