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Finding the Fourth Proportional to 442,538.05, 610,799.22 and 281,361.61

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Solution

The fourth proportional to 442,538.05, 610,799.22 and 281,361.61 is: 388,340.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,538.05 : 610,799.22 = 281,361.61 : x
  2. Step 2: Convert to fraction form
    442,538.05/610,799.22 = 281,361.61/x
  3. Step 3: Cross multiply
    442,538.05x = 610,799.22 × 281,361.61
  4. Step 4: Simplify right side
    442,538.05x = 171,855,451,925.94
  5. Step 5: Solve for x
    x = 171,855,451,925.94/442,538.05
  6. Step 6: Final answer
    x = 388,340.51

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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.