Home / 228,116.35-342,177.26-138,178.71

Finding the Fourth Proportional to 228,116.35, 342,177.26 and 138,178.71

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Solution

The fourth proportional to 228,116.35, 342,177.26 and 138,178.71 is: 207,269.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,116.35 : 342,177.26 = 138,178.71 : x
  2. Step 2: Convert to fraction form
    228,116.35/342,177.26 = 138,178.71/x
  3. Step 3: Cross multiply
    228,116.35x = 342,177.26 × 138,178.71
  4. Step 4: Simplify right side
    228,116.35x = 47,281,612,464.50
  5. Step 5: Solve for x
    x = 47,281,612,464.50/228,116.35
  6. Step 6: Final answer
    x = 207,269.72

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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.