Home / 385,386.81-531,789.41-222,067.13

Finding the Fourth Proportional to 385,386.81, 531,789.41 and 222,067.13

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Solution

The fourth proportional to 385,386.81, 531,789.41 and 222,067.13 is: 306,427.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,386.81 : 531,789.41 = 222,067.13 : x
  2. Step 2: Convert to fraction form
    385,386.81/531,789.41 = 222,067.13/x
  3. Step 3: Cross multiply
    385,386.81x = 531,789.41 × 222,067.13
  4. Step 4: Simplify right side
    385,386.81x = 118,092,944,273.81
  5. Step 5: Solve for x
    x = 118,092,944,273.81/385,386.81
  6. Step 6: Final answer
    x = 306,427.05

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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.