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Finding the Fourth Proportional to 326,031, 449,924.02 and 190,158.78

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Solution

The fourth proportional to 326,031, 449,924.02 and 190,158.78 is: 262,419.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,031 : 449,924.02 = 190,158.78 : x
  2. Step 2: Convert to fraction form
    326,031/449,924.02 = 190,158.78/x
  3. Step 3: Cross multiply
    326,031x = 449,924.02 × 190,158.78
  4. Step 4: Simplify right side
    326,031x = 85,557,002,735.90
  5. Step 5: Solve for x
    x = 85,557,002,735.90/326,031
  6. Step 6: Final answer
    x = 262,419.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.