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Finding the Fourth Proportional to 363,988.86, 502,342.19 and 218,842.12

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Solution

The fourth proportional to 363,988.86, 502,342.19 and 218,842.12 is: 302,024.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,988.86 : 502,342.19 = 218,842.12 : x
  2. Step 2: Convert to fraction form
    363,988.86/502,342.19 = 218,842.12/x
  3. Step 3: Cross multiply
    363,988.86x = 502,342.19 × 218,842.12
  4. Step 4: Simplify right side
    363,988.86x = 109,933,630,179.42
  5. Step 5: Solve for x
    x = 109,933,630,179.42/363,988.86
  6. Step 6: Final answer
    x = 302,024.71

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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.