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Finding the Fourth Proportional to 326,101.70, 489,152.55 and 231,623.30

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Solution

The fourth proportional to 326,101.70, 489,152.55 and 231,623.30 is: 347,434.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,101.70 : 489,152.55 = 231,623.30 : x
  2. Step 2: Convert to fraction form
    326,101.70/489,152.55 = 231,623.30/x
  3. Step 3: Cross multiply
    326,101.70x = 489,152.55 × 231,623.30
  4. Step 4: Simplify right side
    326,101.70x = 113,299,127,834.42
  5. Step 5: Solve for x
    x = 113,299,127,834.42/326,101.70
  6. Step 6: Final answer
    x = 347,434.95

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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.