Home / 439,630.40-659,664.30-173,399.60

Finding the Fourth Proportional to 439,630.40, 659,664.30 and 173,399.60

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Solution

The fourth proportional to 439,630.40, 659,664.30 and 173,399.60 is: 260,185.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,630.40 : 659,664.30 = 173,399.60 : x
  2. Step 2: Convert to fraction form
    439,630.40/659,664.30 = 173,399.60/x
  3. Step 3: Cross multiply
    439,630.40x = 659,664.30 × 173,399.60
  4. Step 4: Simplify right side
    439,630.40x = 114,385,525,754.28
  5. Step 5: Solve for x
    x = 114,385,525,754.28/439,630.40
  6. Step 6: Final answer
    x = 260,185.66

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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.