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Finding the Fourth Proportional to 326,281.77, 489,402.96 and 194,003.79

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Solution

The fourth proportional to 326,281.77, 489,402.96 and 194,003.79 is: 290,993.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,281.77 : 489,402.96 = 194,003.79 : x
  2. Step 2: Convert to fraction form
    326,281.77/489,402.96 = 194,003.79/x
  3. Step 3: Cross multiply
    326,281.77x = 489,402.96 × 194,003.79
  4. Step 4: Simplify right side
    326,281.77x = 94,946,029,077.22
  5. Step 5: Solve for x
    x = 94,946,029,077.22/326,281.77
  6. Step 6: Final answer
    x = 290,993.97

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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.