Home / 279,948.74-386,329.25-159,090.26

Finding the Fourth Proportional to 279,948.74, 386,329.25 and 159,090.26

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Solution

The fourth proportional to 279,948.74, 386,329.25 and 159,090.26 is: 219,544.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,948.74 : 386,329.25 = 159,090.26 : x
  2. Step 2: Convert to fraction form
    279,948.74/386,329.25 = 159,090.26/x
  3. Step 3: Cross multiply
    279,948.74x = 386,329.25 × 159,090.26
  4. Step 4: Simplify right side
    279,948.74x = 61,461,222,191.65
  5. Step 5: Solve for x
    x = 61,461,222,191.65/279,948.74
  6. Step 6: Final answer
    x = 219,544.56

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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.