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Finding the Fourth Proportional to 439,860.80, 659,661.60 and 173,532.80

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Solution

The fourth proportional to 439,860.80, 659,661.60 and 173,532.80 is: 260,248.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,860.80 : 659,661.60 = 173,532.80 : x
  2. Step 2: Convert to fraction form
    439,860.80/659,661.60 = 173,532.80/x
  3. Step 3: Cross multiply
    439,860.80x = 659,661.60 × 173,532.80
  4. Step 4: Simplify right side
    439,860.80x = 114,472,924,500.48
  5. Step 5: Solve for x
    x = 114,472,924,500.48/439,860.80
  6. Step 6: Final answer
    x = 260,248.07

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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.