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Finding the Fourth Proportional to 213,862.60, 295,161.55 and 123,201.12

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Solution

The fourth proportional to 213,862.60, 295,161.55 and 123,201.12 is: 170,035.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,862.60 : 295,161.55 = 123,201.12 : x
  2. Step 2: Convert to fraction form
    213,862.60/295,161.55 = 123,201.12/x
  3. Step 3: Cross multiply
    213,862.60x = 295,161.55 × 123,201.12
  4. Step 4: Simplify right side
    213,862.60x = 36,364,233,540.94
  5. Step 5: Solve for x
    x = 36,364,233,540.94/213,862.60
  6. Step 6: Final answer
    x = 170,035.50

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1.5x scale

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.