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Finding the Fourth Proportional to 206,369.91, 309,554.88 and 136,232.82

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Solution

The fourth proportional to 206,369.91, 309,554.88 and 136,232.82 is: 204,349.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,369.91 : 309,554.88 = 136,232.82 : x
  2. Step 2: Convert to fraction form
    206,369.91/309,554.88 = 136,232.82/x
  3. Step 3: Cross multiply
    206,369.91x = 309,554.88 × 136,232.82
  4. Step 4: Simplify right side
    206,369.91x = 42,171,534,247.16
  5. Step 5: Solve for x
    x = 42,171,534,247.16/206,369.91
  6. Step 6: Final answer
    x = 204,349.24

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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.