Home / 279,589.12-385,871.04-164,900.21

Finding the Fourth Proportional to 279,589.12, 385,871.04 and 164,900.21

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Solution

The fourth proportional to 279,589.12, 385,871.04 and 164,900.21 is: 227,584.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,589.12 : 385,871.04 = 164,900.21 : x
  2. Step 2: Convert to fraction form
    279,589.12/385,871.04 = 164,900.21/x
  3. Step 3: Cross multiply
    279,589.12x = 385,871.04 × 164,900.21
  4. Step 4: Simplify right side
    279,589.12x = 63,630,213,599.56
  5. Step 5: Solve for x
    x = 63,630,213,599.56/279,589.12
  6. Step 6: Final answer
    x = 227,584.73

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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.