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Finding the Fourth Proportional to 326,865.72, 489,855.72 and 169,204.92

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Solution

The fourth proportional to 326,865.72, 489,855.72 and 169,204.92 is: 253,578.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,865.72 : 489,855.72 = 169,204.92 : x
  2. Step 2: Convert to fraction form
    326,865.72/489,855.72 = 169,204.92/x
  3. Step 3: Cross multiply
    326,865.72x = 489,855.72 × 169,204.92
  4. Step 4: Simplify right side
    326,865.72x = 82,885,997,914.14
  5. Step 5: Solve for x
    x = 82,885,997,914.14/326,865.72
  6. Step 6: Final answer
    x = 253,578.13

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1.5x scale

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.