Home / 260,937.23-391,448.40-92,421.03

Finding the Fourth Proportional to 260,937.23, 391,448.40 and 92,421.03

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Solution

The fourth proportional to 260,937.23, 391,448.40 and 92,421.03 is: 138,646.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,937.23 : 391,448.40 = 92,421.03 : x
  2. Step 2: Convert to fraction form
    260,937.23/391,448.40 = 92,421.03/x
  3. Step 3: Cross multiply
    260,937.23x = 391,448.40 × 92,421.03
  4. Step 4: Simplify right side
    260,937.23x = 36,178,062,138.36
  5. Step 5: Solve for x
    x = 36,178,062,138.36/260,937.23
  6. Step 6: Final answer
    x = 138,646.61

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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.