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Finding the Fourth Proportional to 381,494.84, 526,465.06 and 238,338.04

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Solution

The fourth proportional to 381,494.84, 526,465.06 and 238,338.04 is: 328,907.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,494.84 : 526,465.06 = 238,338.04 : x
  2. Step 2: Convert to fraction form
    381,494.84/526,465.06 = 238,338.04/x
  3. Step 3: Cross multiply
    381,494.84x = 526,465.06 × 238,338.04
  4. Step 4: Simplify right side
    381,494.84x = 125,476,650,528.88
  5. Step 5: Solve for x
    x = 125,476,650,528.88/381,494.84
  6. Step 6: Final answer
    x = 328,907.86

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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.