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Finding the Fourth Proportional to 296,964.30, 445,446.45 and 136,992.92

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Solution

The fourth proportional to 296,964.30, 445,446.45 and 136,992.92 is: 205,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,964.30 : 445,446.45 = 136,992.92 : x
  2. Step 2: Convert to fraction form
    296,964.30/445,446.45 = 136,992.92/x
  3. Step 3: Cross multiply
    296,964.30x = 445,446.45 × 136,992.92
  4. Step 4: Simplify right side
    296,964.30x = 61,023,007,661.90
  5. Step 5: Solve for x
    x = 61,023,007,661.90/296,964.30
  6. Step 6: Final answer
    x = 205,489.37

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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.