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Finding the Fourth Proportional to 257,551.80, 386,327.70 and 238,889.40

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Solution

The fourth proportional to 257,551.80, 386,327.70 and 238,889.40 is: 358,334.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,551.80 : 386,327.70 = 238,889.40 : x
  2. Step 2: Convert to fraction form
    257,551.80/386,327.70 = 238,889.40/x
  3. Step 3: Cross multiply
    257,551.80x = 386,327.70 × 238,889.40
  4. Step 4: Simplify right side
    257,551.80x = 92,289,592,456.38
  5. Step 5: Solve for x
    x = 92,289,592,456.38/257,551.80
  6. Step 6: Final answer
    x = 358,334.10

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