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Finding the Fourth Proportional to 412,251.40, 618,017.10 and 159,704.20

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Solution

The fourth proportional to 412,251.40, 618,017.10 and 159,704.20 is: 239,416.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,251.40 : 618,017.10 = 159,704.20 : x
  2. Step 2: Convert to fraction form
    412,251.40/618,017.10 = 159,704.20/x
  3. Step 3: Cross multiply
    412,251.40x = 618,017.10 × 159,704.20
  4. Step 4: Simplify right side
    412,251.40x = 98,699,926,541.82
  5. Step 5: Solve for x
    x = 98,699,926,541.82/412,251.40
  6. Step 6: Final answer
    x = 239,416.84

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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.