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Finding the Fourth Proportional to 439,568.42, 659,327.12 and 169,643.76

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Solution

The fourth proportional to 439,568.42, 659,327.12 and 169,643.76 is: 254,455.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,568.42 : 659,327.12 = 169,643.76 : x
  2. Step 2: Convert to fraction form
    439,568.42/659,327.12 = 169,643.76/x
  3. Step 3: Cross multiply
    439,568.42x = 659,327.12 × 169,643.76
  4. Step 4: Simplify right side
    439,568.42x = 111,850,731,706.77
  5. Step 5: Solve for x
    x = 111,850,731,706.77/439,568.42
  6. Step 6: Final answer
    x = 254,455.79

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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.