Home / 279,576.75-385,852.38-166,399.50

Finding the Fourth Proportional to 279,576.75, 385,852.38 and 166,399.50

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Solution

The fourth proportional to 279,576.75, 385,852.38 and 166,399.50 is: 229,653.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,576.75 : 385,852.38 = 166,399.50 : x
  2. Step 2: Convert to fraction form
    279,576.75/385,852.38 = 166,399.50/x
  3. Step 3: Cross multiply
    279,576.75x = 385,852.38 × 166,399.50
  4. Step 4: Simplify right side
    279,576.75x = 64,205,643,105.81
  5. Step 5: Solve for x
    x = 64,205,643,105.81/279,576.75
  6. Step 6: Final answer
    x = 229,653.01

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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.