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Finding the Fourth Proportional to 312,422.30, 468,536.55 and 112,716.73

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Solution

The fourth proportional to 312,422.30, 468,536.55 and 112,716.73 is: 169,040.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,422.30 : 468,536.55 = 112,716.73 : x
  2. Step 2: Convert to fraction form
    312,422.30/468,536.55 = 112,716.73/x
  3. Step 3: Cross multiply
    312,422.30x = 468,536.55 × 112,716.73
  4. Step 4: Simplify right side
    312,422.30x = 52,811,907,801.48
  5. Step 5: Solve for x
    x = 52,811,907,801.48/312,422.30
  6. Step 6: Final answer
    x = 169,040.14

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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.