Home / 213,240.40-319,655.80-165,829.20

Finding the Fourth Proportional to 213,240.40, 319,655.80 and 165,829.20

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Solution

The fourth proportional to 213,240.40, 319,655.80 and 165,829.20 is: 248,584.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,240.40 : 319,655.80 = 165,829.20 : x
  2. Step 2: Convert to fraction form
    213,240.40/319,655.80 = 165,829.20/x
  3. Step 3: Cross multiply
    213,240.40x = 319,655.80 × 165,829.20
  4. Step 4: Simplify right side
    213,240.40x = 53,008,265,589.36
  5. Step 5: Solve for x
    x = 53,008,265,589.36/213,240.40
  6. Step 6: Final answer
    x = 248,584.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.