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Finding the Fourth Proportional to 240,039.81, 359,806.98 and 80,072.91

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Solution

The fourth proportional to 240,039.81, 359,806.98 and 80,072.91 is: 120,025.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,039.81 : 359,806.98 = 80,072.91 : x
  2. Step 2: Convert to fraction form
    240,039.81/359,806.98 = 80,072.91/x
  3. Step 3: Cross multiply
    240,039.81x = 359,806.98 × 80,072.91
  4. Step 4: Simplify right side
    240,039.81x = 28,810,791,926.91
  5. Step 5: Solve for x
    x = 28,810,791,926.91/240,039.81
  6. Step 6: Final answer
    x = 120,025.06

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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.