Home / 260,736.61-391,217.30-140,769.74

Finding the Fourth Proportional to 260,736.61, 391,217.30 and 140,769.74

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Solution

The fourth proportional to 260,736.61, 391,217.30 and 140,769.74 is: 211,215.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,736.61 : 391,217.30 = 140,769.74 : x
  2. Step 2: Convert to fraction form
    260,736.61/391,217.30 = 140,769.74/x
  3. Step 3: Cross multiply
    260,736.61x = 391,217.30 × 140,769.74
  4. Step 4: Simplify right side
    260,736.61x = 55,071,554,944.57
  5. Step 5: Solve for x
    x = 55,071,554,944.57/260,736.61
  6. Step 6: Final answer
    x = 211,215.28

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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.