Home / 324,823.38-487,113.75-111,530.76

Finding the Fourth Proportional to 324,823.38, 487,113.75 and 111,530.76

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Solution

The fourth proportional to 324,823.38, 487,113.75 and 111,530.76 is: 167,254.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,823.38 : 487,113.75 = 111,530.76 : x
  2. Step 2: Convert to fraction form
    324,823.38/487,113.75 = 111,530.76/x
  3. Step 3: Cross multiply
    324,823.38x = 487,113.75 × 111,530.76
  4. Step 4: Simplify right side
    324,823.38x = 54,328,166,743.95
  5. Step 5: Solve for x
    x = 54,328,166,743.95/324,823.38
  6. Step 6: Final answer
    x = 167,254.48

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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.