Home / 279,094.18-385,138.22-158,243.56

Finding the Fourth Proportional to 279,094.18, 385,138.22 and 158,243.56

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Solution

The fourth proportional to 279,094.18, 385,138.22 and 158,243.56 is: 218,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,094.18 : 385,138.22 = 158,243.56 : x
  2. Step 2: Convert to fraction form
    279,094.18/385,138.22 = 158,243.56/x
  3. Step 3: Cross multiply
    279,094.18x = 385,138.22 × 158,243.56
  4. Step 4: Simplify right side
    279,094.18x = 60,945,643,024.86
  5. Step 5: Solve for x
    x = 60,945,643,024.86/279,094.18
  6. Step 6: Final answer
    x = 218,369.45

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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.