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Finding the Fourth Proportional to 381,215.68, 526,075.49 and 209,129.24

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Solution

The fourth proportional to 381,215.68, 526,075.49 and 209,129.24 is: 288,597.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,215.68 : 526,075.49 = 209,129.24 : x
  2. Step 2: Convert to fraction form
    381,215.68/526,075.49 = 209,129.24/x
  3. Step 3: Cross multiply
    381,215.68x = 526,075.49 × 209,129.24
  4. Step 4: Simplify right side
    381,215.68x = 110,017,769,244.34
  5. Step 5: Solve for x
    x = 110,017,769,244.34/381,215.68
  6. Step 6: Final answer
    x = 288,597.18

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