Home / 279,475.14-385,675.41-152,150.73

Finding the Fourth Proportional to 279,475.14, 385,675.41 and 152,150.73

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Solution

The fourth proportional to 279,475.14, 385,675.41 and 152,150.73 is: 209,967.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,475.14 : 385,675.41 = 152,150.73 : x
  2. Step 2: Convert to fraction form
    279,475.14/385,675.41 = 152,150.73/x
  3. Step 3: Cross multiply
    279,475.14x = 385,675.41 × 152,150.73
  4. Step 4: Simplify right side
    279,475.14x = 58,680,795,174.55
  5. Step 5: Solve for x
    x = 58,680,795,174.55/279,475.14
  6. Step 6: Final answer
    x = 209,967.85

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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.