Home / 238,822.79-329,575.43-131,390.51

Finding the Fourth Proportional to 238,822.79, 329,575.43 and 131,390.51

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Solution

The fourth proportional to 238,822.79, 329,575.43 and 131,390.51 is: 181,318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,822.79 : 329,575.43 = 131,390.51 : x
  2. Step 2: Convert to fraction form
    238,822.79/329,575.43 = 131,390.51/x
  3. Step 3: Cross multiply
    238,822.79x = 329,575.43 × 131,390.51
  4. Step 4: Simplify right side
    238,822.79x = 43,303,083,831.17
  5. Step 5: Solve for x
    x = 43,303,083,831.17/238,822.79
  6. Step 6: Final answer
    x = 181,318.89

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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.