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Finding the Fourth Proportional to 508.06, 700.90 and 298.30

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Solution

The fourth proportional to 508.06, 700.90 and 298.30 is: 411.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.06 : 700.90 = 298.30 : x
  2. Step 2: Convert to fraction form
    508.06/700.90 = 298.30/x
  3. Step 3: Cross multiply
    508.06x = 700.90 × 298.30
  4. Step 4: Simplify right side
    508.06x = 209,073.47
  5. Step 5: Solve for x
    x = 209,073.47/508.06
  6. Step 6: Final answer
    x = 411.52

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