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Finding the Fourth Proportional to 291,674.39, 402,696.41 and 238,086.81

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Solution

The fourth proportional to 291,674.39, 402,696.41 and 238,086.81 is: 328,711.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,674.39 : 402,696.41 = 238,086.81 : x
  2. Step 2: Convert to fraction form
    291,674.39/402,696.41 = 238,086.81/x
  3. Step 3: Cross multiply
    291,674.39x = 402,696.41 × 238,086.81
  4. Step 4: Simplify right side
    291,674.39x = 95,876,702,464.92
  5. Step 5: Solve for x
    x = 95,876,702,464.92/291,674.39
  6. Step 6: Final answer
    x = 328,711.42

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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.