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Finding the Fourth Proportional to 335.16, 503.57 and 313.65

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Solution

The fourth proportional to 335.16, 503.57 and 313.65 is: 471.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.16 : 503.57 = 313.65 : x
  2. Step 2: Convert to fraction form
    335.16/503.57 = 313.65/x
  3. Step 3: Cross multiply
    335.16x = 503.57 × 313.65
  4. Step 4: Simplify right side
    335.16x = 157,943.16
  5. Step 5: Solve for x
    x = 157,943.16/335.16
  6. Step 6: Final answer
    x = 471.25

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