Home / 238,391.58-328,983.75-130,971.54

Finding the Fourth Proportional to 238,391.58, 328,983.75 and 130,971.54

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Solution

The fourth proportional to 238,391.58, 328,983.75 and 130,971.54 is: 180,742.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,391.58 : 328,983.75 = 130,971.54 : x
  2. Step 2: Convert to fraction form
    238,391.58/328,983.75 = 130,971.54/x
  3. Step 3: Cross multiply
    238,391.58x = 328,983.75 × 130,971.54
  4. Step 4: Simplify right side
    238,391.58x = 43,087,508,372.48
  5. Step 5: Solve for x
    x = 43,087,508,372.48/238,391.58
  6. Step 6: Final answer
    x = 180,742.58

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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.