Home / 378,811.18-567,527.66-220,559.86

Finding the Fourth Proportional to 378,811.18, 567,527.66 and 220,559.86

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Solution

The fourth proportional to 378,811.18, 567,527.66 and 220,559.86 is: 330,438.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,811.18 : 567,527.66 = 220,559.86 : x
  2. Step 2: Convert to fraction form
    378,811.18/567,527.66 = 220,559.86/x
  3. Step 3: Cross multiply
    378,811.18x = 567,527.66 × 220,559.86
  4. Step 4: Simplify right side
    378,811.18x = 125,173,817,295.29
  5. Step 5: Solve for x
    x = 125,173,817,295.29/378,811.18
  6. Step 6: Final answer
    x = 330,438.56

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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.