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Finding the Fourth Proportional to 507.99, 761.88 and 142.82

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Solution

The fourth proportional to 507.99, 761.88 and 142.82 is: 214.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.99 : 761.88 = 142.82 : x
  2. Step 2: Convert to fraction form
    507.99/761.88 = 142.82/x
  3. Step 3: Cross multiply
    507.99x = 761.88 × 142.82
  4. Step 4: Simplify right side
    507.99x = 108,807.89
  5. Step 5: Solve for x
    x = 108,807.89/507.99
  6. Step 6: Final answer
    x = 214.19

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