Home / 259,911.31-390,022.49-238,760.59

Finding the Fourth Proportional to 259,911.31, 390,022.49 and 238,760.59

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Solution

The fourth proportional to 259,911.31, 390,022.49 and 238,760.59 is: 358,283.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,911.31 : 390,022.49 = 238,760.59 : x
  2. Step 2: Convert to fraction form
    259,911.31/390,022.49 = 238,760.59/x
  3. Step 3: Cross multiply
    259,911.31x = 390,022.49 × 238,760.59
  4. Step 4: Simplify right side
    259,911.31x = 93,121,999,825.67
  5. Step 5: Solve for x
    x = 93,121,999,825.67/259,911.31
  6. Step 6: Final answer
    x = 358,283.75

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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.