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Finding the Fourth Proportional to 297,219.34, 445,485.57 and 136,960.21

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Solution

The fourth proportional to 297,219.34, 445,485.57 and 136,960.21 is: 205,282.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,219.34 : 445,485.57 = 136,960.21 : x
  2. Step 2: Convert to fraction form
    297,219.34/445,485.57 = 136,960.21/x
  3. Step 3: Cross multiply
    297,219.34x = 445,485.57 × 136,960.21
  4. Step 4: Simplify right side
    297,219.34x = 61,013,797,219.17
  5. Step 5: Solve for x
    x = 61,013,797,219.17/297,219.34
  6. Step 6: Final answer
    x = 205,282.06

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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.