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Finding the Fourth Proportional to 266,890.48, 400,392.80 and 98,411.28

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Solution

The fourth proportional to 266,890.48, 400,392.80 and 98,411.28 is: 147,637.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,890.48 : 400,392.80 = 98,411.28 : x
  2. Step 2: Convert to fraction form
    266,890.48/400,392.80 = 98,411.28/x
  3. Step 3: Cross multiply
    266,890.48x = 400,392.80 × 98,411.28
  4. Step 4: Simplify right side
    266,890.48x = 39,403,167,950.78
  5. Step 5: Solve for x
    x = 39,403,167,950.78/266,890.48
  6. Step 6: Final answer
    x = 147,637.97

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