Home / 228,080.08-342,161.22-78,281.68

Finding the Fourth Proportional to 228,080.08, 342,161.22 and 78,281.68

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Solution

The fourth proportional to 228,080.08, 342,161.22 and 78,281.68 is: 117,436.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,080.08 : 342,161.22 = 78,281.68 : x
  2. Step 2: Convert to fraction form
    228,080.08/342,161.22 = 78,281.68/x
  3. Step 3: Cross multiply
    228,080.08x = 342,161.22 × 78,281.68
  4. Step 4: Simplify right side
    228,080.08x = 26,784,955,132.45
  5. Step 5: Solve for x
    x = 26,784,955,132.45/228,080.08
  6. Step 6: Final answer
    x = 117,436.63

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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.