Home / 279,094.23-385,138.41-158,243.70

Finding the Fourth Proportional to 279,094.23, 385,138.41 and 158,243.70

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Solution

The fourth proportional to 279,094.23, 385,138.41 and 158,243.70 is: 218,369.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,094.23 : 385,138.41 = 158,243.70 : x
  2. Step 2: Convert to fraction form
    279,094.23/385,138.41 = 158,243.70/x
  3. Step 3: Cross multiply
    279,094.23x = 385,138.41 × 158,243.70
  4. Step 4: Simplify right side
    279,094.23x = 60,945,727,010.52
  5. Step 5: Solve for x
    x = 60,945,727,010.52/279,094.23
  6. Step 6: Final answer
    x = 218,369.71

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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.