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Finding the Fourth Proportional to 222,215.63, 306,658.17 and 121,613.63

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Solution

The fourth proportional to 222,215.63, 306,658.17 and 121,613.63 is: 167,827.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,215.63 : 306,658.17 = 121,613.63 : x
  2. Step 2: Convert to fraction form
    222,215.63/306,658.17 = 121,613.63/x
  3. Step 3: Cross multiply
    222,215.63x = 306,658.17 × 121,613.63
  4. Step 4: Simplify right side
    222,215.63x = 37,293,811,689.57
  5. Step 5: Solve for x
    x = 37,293,811,689.57/222,215.63
  6. Step 6: Final answer
    x = 167,827.13

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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.