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Finding the Fourth Proportional to 459.59, 689.39 and 134.96

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Solution

The fourth proportional to 459.59, 689.39 and 134.96 is: 202.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.59 : 689.39 = 134.96 : x
  2. Step 2: Convert to fraction form
    459.59/689.39 = 134.96/x
  3. Step 3: Cross multiply
    459.59x = 689.39 × 134.96
  4. Step 4: Simplify right side
    459.59x = 93,041.63
  5. Step 5: Solve for x
    x = 93,041.63/459.59
  6. Step 6: Final answer
    x = 202.45

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