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Finding the Fourth Proportional to 310,523.80, 465,785.70 and 258,035.80

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Solution

The fourth proportional to 310,523.80, 465,785.70 and 258,035.80 is: 387,053.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,523.80 : 465,785.70 = 258,035.80 : x
  2. Step 2: Convert to fraction form
    310,523.80/465,785.70 = 258,035.80/x
  3. Step 3: Cross multiply
    310,523.80x = 465,785.70 × 258,035.80
  4. Step 4: Simplify right side
    310,523.80x = 120,189,385,728.06
  5. Step 5: Solve for x
    x = 120,189,385,728.06/310,523.80
  6. Step 6: Final answer
    x = 387,053.70

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