Home / 328,519.50-492,780.06-91,861.80

Finding the Fourth Proportional to 328,519.50, 492,780.06 and 91,861.80

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Solution

The fourth proportional to 328,519.50, 492,780.06 and 91,861.80 is: 137,792.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,519.50 : 492,780.06 = 91,861.80 : x
  2. Step 2: Convert to fraction form
    328,519.50/492,780.06 = 91,861.80/x
  3. Step 3: Cross multiply
    328,519.50x = 492,780.06 × 91,861.80
  4. Step 4: Simplify right side
    328,519.50x = 45,267,660,392.50
  5. Step 5: Solve for x
    x = 45,267,660,392.50/328,519.50
  6. Step 6: Final answer
    x = 137,792.92

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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.