Home / 777,132.20-1,165,764.30-216,166.70

Finding the Fourth Proportional to 777,132.20, 1,165,764.30 and 216,166.70

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Solution

The fourth proportional to 777,132.20, 1,165,764.30 and 216,166.70 is: 324,268.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,132.20 : 1,165,764.30 = 216,166.70 : x
  2. Step 2: Convert to fraction form
    777,132.20/1,165,764.30 = 216,166.70/x
  3. Step 3: Cross multiply
    777,132.20x = 1,165,764.30 × 216,166.70
  4. Step 4: Simplify right side
    777,132.20x = 251,999,415,879.99
  5. Step 5: Solve for x
    x = 251,999,415,879.99/777,132.20
  6. Step 6: Final answer
    x = 324,268.40

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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.