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Finding the Fourth Proportional to 381,347.19, 526,265.26 and 220,216.32

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Solution

The fourth proportional to 381,347.19, 526,265.26 and 220,216.32 is: 303,902.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,347.19 : 526,265.26 = 220,216.32 : x
  2. Step 2: Convert to fraction form
    381,347.19/526,265.26 = 220,216.32/x
  3. Step 3: Cross multiply
    381,347.19x = 526,265.26 × 220,216.32
  4. Step 4: Simplify right side
    381,347.19x = 115,892,198,350.50
  5. Step 5: Solve for x
    x = 115,892,198,350.50/381,347.19
  6. Step 6: Final answer
    x = 303,902.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.