Home / 238,862.12-358,431.62-120,542.72

Finding the Fourth Proportional to 238,862.12, 358,431.62 and 120,542.72

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Solution

The fourth proportional to 238,862.12, 358,431.62 and 120,542.72 is: 180,883.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,862.12 : 358,431.62 = 120,542.72 : x
  2. Step 2: Convert to fraction form
    238,862.12/358,431.62 = 120,542.72/x
  3. Step 3: Cross multiply
    238,862.12x = 358,431.62 × 120,542.72
  4. Step 4: Simplify right side
    238,862.12x = 43,206,320,013.93
  5. Step 5: Solve for x
    x = 43,206,320,013.93/238,862.12
  6. Step 6: Final answer
    x = 180,883.94

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1.5x scale

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.