Home / 228,091.20-342,038.94-78,346.56

Finding the Fourth Proportional to 228,091.20, 342,038.94 and 78,346.56

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Solution

The fourth proportional to 228,091.20, 342,038.94 and 78,346.56 is: 117,486.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,091.20 : 342,038.94 = 78,346.56 : x
  2. Step 2: Convert to fraction form
    228,091.20/342,038.94 = 78,346.56/x
  3. Step 3: Cross multiply
    228,091.20x = 342,038.94 × 78,346.56
  4. Step 4: Simplify right side
    228,091.20x = 26,797,574,335.05
  5. Step 5: Solve for x
    x = 26,797,574,335.05/228,091.20
  6. Step 6: Final answer
    x = 117,486.23

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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.