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Finding the Fourth Proportional to 203,186.88, 304,838.64 and 132,979.32

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Solution

The fourth proportional to 203,186.88, 304,838.64 and 132,979.32 is: 199,507.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,186.88 : 304,838.64 = 132,979.32 : x
  2. Step 2: Convert to fraction form
    203,186.88/304,838.64 = 132,979.32/x
  3. Step 3: Cross multiply
    203,186.88x = 304,838.64 × 132,979.32
  4. Step 4: Simplify right side
    203,186.88x = 40,537,235,056.92
  5. Step 5: Solve for x
    x = 40,537,235,056.92/203,186.88
  6. Step 6: Final answer
    x = 199,507.15

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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.