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Finding the Fourth Proportional to 222,972.29, 307,699.42 and 124,855.72

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Solution

The fourth proportional to 222,972.29, 307,699.42 and 124,855.72 is: 172,299.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,972.29 : 307,699.42 = 124,855.72 : x
  2. Step 2: Convert to fraction form
    222,972.29/307,699.42 = 124,855.72/x
  3. Step 3: Cross multiply
    222,972.29x = 307,699.42 × 124,855.72
  4. Step 4: Simplify right side
    222,972.29x = 38,418,032,821.38
  5. Step 5: Solve for x
    x = 38,418,032,821.38/222,972.29
  6. Step 6: Final answer
    x = 172,299.59

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1.5x scale

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.