Home / 279,198.36-385,206.84-158,330.16

Finding the Fourth Proportional to 279,198.36, 385,206.84 and 158,330.16

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Solution

The fourth proportional to 279,198.36, 385,206.84 and 158,330.16 is: 218,446.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,198.36 : 385,206.84 = 158,330.16 : x
  2. Step 2: Convert to fraction form
    279,198.36/385,206.84 = 158,330.16/x
  3. Step 3: Cross multiply
    279,198.36x = 385,206.84 × 158,330.16
  4. Step 4: Simplify right side
    279,198.36x = 60,989,860,610.29
  5. Step 5: Solve for x
    x = 60,989,860,610.29/279,198.36
  6. Step 6: Final answer
    x = 218,446.34

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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.