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Finding the Fourth Proportional to 326,136.02, 489,182.13 and 89,458.88

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Solution

The fourth proportional to 326,136.02, 489,182.13 and 89,458.88 is: 134,182.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,136.02 : 489,182.13 = 89,458.88 : x
  2. Step 2: Convert to fraction form
    326,136.02/489,182.13 = 89,458.88/x
  3. Step 3: Cross multiply
    326,136.02x = 489,182.13 × 89,458.88
  4. Step 4: Simplify right side
    326,136.02x = 43,761,683,019.90
  5. Step 5: Solve for x
    x = 43,761,683,019.90/326,136.02
  6. Step 6: Final answer
    x = 134,182.31

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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.