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Finding the Fourth Proportional to 293,080.80, 439,621.20 and 115,491.12

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Solution

The fourth proportional to 293,080.80, 439,621.20 and 115,491.12 is: 173,236.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,080.80 : 439,621.20 = 115,491.12 : x
  2. Step 2: Convert to fraction form
    293,080.80/439,621.20 = 115,491.12/x
  3. Step 3: Cross multiply
    293,080.80x = 439,621.20 × 115,491.12
  4. Step 4: Simplify right side
    293,080.80x = 50,772,344,763.74
  5. Step 5: Solve for x
    x = 50,772,344,763.74/293,080.80
  6. Step 6: Final answer
    x = 173,236.68

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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.