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Finding the Fourth Proportional to 328,546.20, 492,704.10 and 170,722.20

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Solution

The fourth proportional to 328,546.20, 492,704.10 and 170,722.20 is: 256,023.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,546.20 : 492,704.10 = 170,722.20 : x
  2. Step 2: Convert to fraction form
    328,546.20/492,704.10 = 170,722.20/x
  3. Step 3: Cross multiply
    328,546.20x = 492,704.10 × 170,722.20
  4. Step 4: Simplify right side
    328,546.20x = 84,115,527,901.02
  5. Step 5: Solve for x
    x = 84,115,527,901.02/328,546.20
  6. Step 6: Final answer
    x = 256,023.44

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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.