Home / 299,729.40-413,621.68-163,760.42

Finding the Fourth Proportional to 299,729.40, 413,621.68 and 163,760.42

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Solution

The fourth proportional to 299,729.40, 413,621.68 and 163,760.42 is: 225,986.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,729.40 : 413,621.68 = 163,760.42 : x
  2. Step 2: Convert to fraction form
    299,729.40/413,621.68 = 163,760.42/x
  3. Step 3: Cross multiply
    299,729.40x = 413,621.68 × 163,760.42
  4. Step 4: Simplify right side
    299,729.40x = 67,734,859,224.64
  5. Step 5: Solve for x
    x = 67,734,859,224.64/299,729.40
  6. Step 6: Final answer
    x = 225,986.71

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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.