Home / 260,928.55-391,269.45-101,079.36

Finding the Fourth Proportional to 260,928.55, 391,269.45 and 101,079.36

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Solution

The fourth proportional to 260,928.55, 391,269.45 and 101,079.36 is: 151,571.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,928.55 : 391,269.45 = 101,079.36 : x
  2. Step 2: Convert to fraction form
    260,928.55/391,269.45 = 101,079.36/x
  3. Step 3: Cross multiply
    260,928.55x = 391,269.45 × 101,079.36
  4. Step 4: Simplify right side
    260,928.55x = 39,549,265,593.55
  5. Step 5: Solve for x
    x = 39,549,265,593.55/260,928.55
  6. Step 6: Final answer
    x = 151,571.25

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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.