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Finding the Fourth Proportional to 324,288.90, 486,434.97 and 146,587.86

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Solution

The fourth proportional to 324,288.90, 486,434.97 and 146,587.86 is: 219,882.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,288.90 : 486,434.97 = 146,587.86 : x
  2. Step 2: Convert to fraction form
    324,288.90/486,434.97 = 146,587.86/x
  3. Step 3: Cross multiply
    324,288.90x = 486,434.97 × 146,587.86
  4. Step 4: Simplify right side
    324,288.90x = 71,305,461,281.46
  5. Step 5: Solve for x
    x = 71,305,461,281.46/324,288.90
  6. Step 6: Final answer
    x = 219,882.52

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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.