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Finding the Fourth Proportional to 203,624.20, 305,436.30 and 55,880.20

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Solution

The fourth proportional to 203,624.20, 305,436.30 and 55,880.20 is: 83,820.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,624.20 : 305,436.30 = 55,880.20 : x
  2. Step 2: Convert to fraction form
    203,624.20/305,436.30 = 55,880.20/x
  3. Step 3: Cross multiply
    203,624.20x = 305,436.30 × 55,880.20
  4. Step 4: Simplify right side
    203,624.20x = 17,067,841,531.26
  5. Step 5: Solve for x
    x = 17,067,841,531.26/203,624.20
  6. Step 6: Final answer
    x = 83,820.30

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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.