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Finding the Fourth Proportional to 222,538.88, 307,103.66 and 121,934.72

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Solution

The fourth proportional to 222,538.88, 307,103.66 and 121,934.72 is: 168,269.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,538.88 : 307,103.66 = 121,934.72 : x
  2. Step 2: Convert to fraction form
    222,538.88/307,103.66 = 121,934.72/x
  3. Step 3: Cross multiply
    222,538.88x = 307,103.66 × 121,934.72
  4. Step 4: Simplify right side
    222,538.88x = 37,446,596,647.88
  5. Step 5: Solve for x
    x = 37,446,596,647.88/222,538.88
  6. Step 6: Final answer
    x = 168,269.91

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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.