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Finding the Fourth Proportional to 215,577.60, 323,366.40 and 203,330.40

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Solution

The fourth proportional to 215,577.60, 323,366.40 and 203,330.40 is: 304,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,577.60 : 323,366.40 = 203,330.40 : x
  2. Step 2: Convert to fraction form
    215,577.60/323,366.40 = 203,330.40/x
  3. Step 3: Cross multiply
    215,577.60x = 323,366.40 × 203,330.40
  4. Step 4: Simplify right side
    215,577.60x = 65,750,219,458.56
  5. Step 5: Solve for x
    x = 65,750,219,458.56/215,577.60
  6. Step 6: Final answer
    x = 304,995.60

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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.