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Finding the Fourth Proportional to 326,257.75, 489,565.00 and 126,586.02

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Solution

The fourth proportional to 326,257.75, 489,565.00 and 126,586.02 is: 189,948.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,257.75 : 489,565.00 = 126,586.02 : x
  2. Step 2: Convert to fraction form
    326,257.75/489,565.00 = 126,586.02/x
  3. Step 3: Cross multiply
    326,257.75x = 489,565.00 × 126,586.02
  4. Step 4: Simplify right side
    326,257.75x = 61,972,082,566.69
  5. Step 5: Solve for x
    x = 61,972,082,566.69/326,257.75
  6. Step 6: Final answer
    x = 189,948.23

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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.