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Finding the Fourth Proportional to 266,159.60, 399,239.40 and 133,060.40

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Solution

The fourth proportional to 266,159.60, 399,239.40 and 133,060.40 is: 199,590.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,159.60 : 399,239.40 = 133,060.40 : x
  2. Step 2: Convert to fraction form
    266,159.60/399,239.40 = 133,060.40/x
  3. Step 3: Cross multiply
    266,159.60x = 399,239.40 × 133,060.40
  4. Step 4: Simplify right side
    266,159.60x = 53,122,954,259.76
  5. Step 5: Solve for x
    x = 53,122,954,259.76/266,159.60
  6. Step 6: Final answer
    x = 199,590.60

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