Home / 260,689.55-391,182.12-140,744.88

Finding the Fourth Proportional to 260,689.55, 391,182.12 and 140,744.88

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Solution

The fourth proportional to 260,689.55, 391,182.12 and 140,744.88 is: 211,197.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,689.55 : 391,182.12 = 140,744.88 : x
  2. Step 2: Convert to fraction form
    260,689.55/391,182.12 = 140,744.88/x
  3. Step 3: Cross multiply
    260,689.55x = 391,182.12 × 140,744.88
  4. Step 4: Simplify right side
    260,689.55x = 55,056,880,537.55
  5. Step 5: Solve for x
    x = 55,056,880,537.55/260,689.55
  6. Step 6: Final answer
    x = 211,197.12

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1.5x scale

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.