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Finding the Fourth Proportional to 324,205.40, 486,096.90 and 291,027.80

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Solution

The fourth proportional to 324,205.40, 486,096.90 and 291,027.80 is: 436,352.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,205.40 : 486,096.90 = 291,027.80 : x
  2. Step 2: Convert to fraction form
    324,205.40/486,096.90 = 291,027.80/x
  3. Step 3: Cross multiply
    324,205.40x = 486,096.90 × 291,027.80
  4. Step 4: Simplify right side
    324,205.40x = 141,467,711,393.82
  5. Step 5: Solve for x
    x = 141,467,711,393.82/324,205.40
  6. Step 6: Final answer
    x = 436,352.11

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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.