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Finding the Fourth Proportional to 453.51, 625.77 and 256.98

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Solution

The fourth proportional to 453.51, 625.77 and 256.98 is: 354.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.51 : 625.77 = 256.98 : x
  2. Step 2: Convert to fraction form
    453.51/625.77 = 256.98/x
  3. Step 3: Cross multiply
    453.51x = 625.77 × 256.98
  4. Step 4: Simplify right side
    453.51x = 160,810.37
  5. Step 5: Solve for x
    x = 160,810.37/453.51
  6. Step 6: Final answer
    x = 354.59

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