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Finding the Fourth Proportional to 240,039.99, 359,980.84 and 80,071.84

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Solution

The fourth proportional to 240,039.99, 359,980.84 and 80,071.84 is: 120,081.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,039.99 : 359,980.84 = 80,071.84 : x
  2. Step 2: Convert to fraction form
    240,039.99/359,980.84 = 80,071.84/x
  3. Step 3: Cross multiply
    240,039.99x = 359,980.84 × 80,071.84
  4. Step 4: Simplify right side
    240,039.99x = 28,824,328,223.55
  5. Step 5: Solve for x
    x = 28,824,328,223.55/240,039.99
  6. Step 6: Final answer
    x = 120,081.36

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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.