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Finding the Fourth Proportional to 324,779.79, 487,138.36 and 100,079.89

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Solution

The fourth proportional to 324,779.79, 487,138.36 and 100,079.89 is: 150,110.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,779.79 : 487,138.36 = 100,079.89 : x
  2. Step 2: Convert to fraction form
    324,779.79/487,138.36 = 100,079.89/x
  3. Step 3: Cross multiply
    324,779.79x = 487,138.36 × 100,079.89
  4. Step 4: Simplify right side
    324,779.79x = 48,752,754,328.67
  5. Step 5: Solve for x
    x = 48,752,754,328.67/324,779.79
  6. Step 6: Final answer
    x = 150,110.19

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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.