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Finding the Fourth Proportional to 273,908.12, 378,235.57 and 170,718.42

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Solution

The fourth proportional to 273,908.12, 378,235.57 and 170,718.42 is: 235,742.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,908.12 : 378,235.57 = 170,718.42 : x
  2. Step 2: Convert to fraction form
    273,908.12/378,235.57 = 170,718.42/x
  3. Step 3: Cross multiply
    273,908.12x = 378,235.57 × 170,718.42
  4. Step 4: Simplify right side
    273,908.12x = 64,571,778,562.45
  5. Step 5: Solve for x
    x = 64,571,778,562.45/273,908.12
  6. Step 6: Final answer
    x = 235,742.48

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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.