Home / 260,980.02-391,498.11-83,423.70

Finding the Fourth Proportional to 260,980.02, 391,498.11 and 83,423.70

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Solution

The fourth proportional to 260,980.02, 391,498.11 and 83,423.70 is: 125,144.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,980.02 : 391,498.11 = 83,423.70 : x
  2. Step 2: Convert to fraction form
    260,980.02/391,498.11 = 83,423.70/x
  3. Step 3: Cross multiply
    260,980.02x = 391,498.11 × 83,423.70
  4. Step 4: Simplify right side
    260,980.02x = 32,660,220,879.21
  5. Step 5: Solve for x
    x = 32,660,220,879.21/260,980.02
  6. Step 6: Final answer
    x = 125,144.53

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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.