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Finding the Fourth Proportional to 222,574.59, 307,151.87 and 121,972.59

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Solution

The fourth proportional to 222,574.59, 307,151.87 and 121,972.59 is: 168,321.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,574.59 : 307,151.87 = 121,972.59 : x
  2. Step 2: Convert to fraction form
    222,574.59/307,151.87 = 121,972.59/x
  3. Step 3: Cross multiply
    222,574.59x = 307,151.87 × 121,972.59
  4. Step 4: Simplify right side
    222,574.59x = 37,464,108,497.38
  5. Step 5: Solve for x
    x = 37,464,108,497.38/222,574.59
  6. Step 6: Final answer
    x = 168,321.59

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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.