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Finding the Fourth Proportional to 306,807.46, 460,138.28 and 138,223.78

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Solution

The fourth proportional to 306,807.46, 460,138.28 and 138,223.78 is: 207,302.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,807.46 : 460,138.28 = 138,223.78 : x
  2. Step 2: Convert to fraction form
    306,807.46/460,138.28 = 138,223.78/x
  3. Step 3: Cross multiply
    306,807.46x = 460,138.28 × 138,223.78
  4. Step 4: Simplify right side
    306,807.46x = 63,602,052,384.30
  5. Step 5: Solve for x
    x = 63,602,052,384.30/306,807.46
  6. Step 6: Final answer
    x = 207,302.82

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