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Finding the Fourth Proportional to 326,513.33, 489,958.98 and 136,956.62

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Solution

The fourth proportional to 326,513.33, 489,958.98 and 136,956.62 is: 205,514.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,513.33 : 489,958.98 = 136,956.62 : x
  2. Step 2: Convert to fraction form
    326,513.33/489,958.98 = 136,956.62/x
  3. Step 3: Cross multiply
    326,513.33x = 489,958.98 × 136,956.62
  4. Step 4: Simplify right side
    326,513.33x = 67,103,126,550.76
  5. Step 5: Solve for x
    x = 67,103,126,550.76/326,513.33
  6. Step 6: Final answer
    x = 205,514.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.