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Finding the Fourth Proportional to 405.80, 560 and 250.52

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Solution

The fourth proportional to 405.80, 560 and 250.52 is: 345.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    405.80 : 560 = 250.52 : x
  2. Step 2: Convert to fraction form
    405.80/560 = 250.52/x
  3. Step 3: Cross multiply
    405.80x = 560 × 250.52
  4. Step 4: Simplify right side
    405.80x = 140,291.20
  5. Step 5: Solve for x
    x = 140,291.20/405.80
  6. Step 6: Final answer
    x = 345.72

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