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Finding the Fourth Proportional to 312,414.76, 468,525.16 and 112,709.12

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Solution

The fourth proportional to 312,414.76, 468,525.16 and 112,709.12 is: 169,028.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,414.76 : 468,525.16 = 112,709.12 : x
  2. Step 2: Convert to fraction form
    312,414.76/468,525.16 = 112,709.12/x
  3. Step 3: Cross multiply
    312,414.76x = 468,525.16 × 112,709.12
  4. Step 4: Simplify right side
    312,414.76x = 52,807,058,481.46
  5. Step 5: Solve for x
    x = 52,807,058,481.46/312,414.76
  6. Step 6: Final answer
    x = 169,028.69

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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.