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Finding the Fourth Proportional to 315.76, 436.08 and 250.60

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Solution

The fourth proportional to 315.76, 436.08 and 250.60 is: 346.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    315.76 : 436.08 = 250.60 : x
  2. Step 2: Convert to fraction form
    315.76/436.08 = 250.60/x
  3. Step 3: Cross multiply
    315.76x = 436.08 × 250.60
  4. Step 4: Simplify right side
    315.76x = 109,281.65
  5. Step 5: Solve for x
    x = 109,281.65/315.76
  6. Step 6: Final answer
    x = 346.09

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