Home / 279,517.96-385,729.86-152,191.36

Finding the Fourth Proportional to 279,517.96, 385,729.86 and 152,191.36

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Solution

The fourth proportional to 279,517.96, 385,729.86 and 152,191.36 is: 210,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,517.96 : 385,729.86 = 152,191.36 : x
  2. Step 2: Convert to fraction form
    279,517.96/385,729.86 = 152,191.36/x
  3. Step 3: Cross multiply
    279,517.96x = 385,729.86 × 152,191.36
  4. Step 4: Simplify right side
    279,517.96x = 58,704,751,986.01
  5. Step 5: Solve for x
    x = 58,704,751,986.01/279,517.96
  6. Step 6: Final answer
    x = 210,021.40

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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.