Home / 326,685.40-489,371.98-148,947.91

Finding the Fourth Proportional to 326,685.40, 489,371.98 and 148,947.91

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Solution

The fourth proportional to 326,685.40, 489,371.98 and 148,947.91 is: 223,122.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,685.40 : 489,371.98 = 148,947.91 : x
  2. Step 2: Convert to fraction form
    326,685.40/489,371.98 = 148,947.91/x
  3. Step 3: Cross multiply
    326,685.40x = 489,371.98 × 148,947.91
  4. Step 4: Simplify right side
    326,685.40x = 72,890,933,633.56
  5. Step 5: Solve for x
    x = 72,890,933,633.56/326,685.40
  6. Step 6: Final answer
    x = 223,122.72

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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.