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Finding the Fourth Proportional to 260,695.75, 359,698.11 and 158,720.04

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Solution

The fourth proportional to 260,695.75, 359,698.11 and 158,720.04 is: 218,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,695.75 : 359,698.11 = 158,720.04 : x
  2. Step 2: Convert to fraction form
    260,695.75/359,698.11 = 158,720.04/x
  3. Step 3: Cross multiply
    260,695.75x = 359,698.11 × 158,720.04
  4. Step 4: Simplify right side
    260,695.75x = 57,091,300,110.60
  5. Step 5: Solve for x
    x = 57,091,300,110.60/260,695.75
  6. Step 6: Final answer
    x = 218,995.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.