Home / 228,331.28-342,412.68-78,529.88

Finding the Fourth Proportional to 228,331.28, 342,412.68 and 78,529.88

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Solution

The fourth proportional to 228,331.28, 342,412.68 and 78,529.88 is: 117,765.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,331.28 : 342,412.68 = 78,529.88 : x
  2. Step 2: Convert to fraction form
    228,331.28/342,412.68 = 78,529.88/x
  3. Step 3: Cross multiply
    228,331.28x = 342,412.68 × 78,529.88
  4. Step 4: Simplify right side
    228,331.28x = 26,889,626,670.88
  5. Step 5: Solve for x
    x = 26,889,626,670.88/228,331.28
  6. Step 6: Final answer
    x = 117,765.85

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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.