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Finding the Fourth Proportional to 381,340.54, 526,250.01 and 211,574.26

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Solution

The fourth proportional to 381,340.54, 526,250.01 and 211,574.26 is: 291,972.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,340.54 : 526,250.01 = 211,574.26 : x
  2. Step 2: Convert to fraction form
    381,340.54/526,250.01 = 211,574.26/x
  3. Step 3: Cross multiply
    381,340.54x = 526,250.01 × 211,574.26
  4. Step 4: Simplify right side
    381,340.54x = 111,340,956,440.74
  5. Step 5: Solve for x
    x = 111,340,956,440.74/381,340.54
  6. Step 6: Final answer
    x = 291,972.51

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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.