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Finding the Fourth Proportional to 387,964.93, 535,637.55 and 265,661.95

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Solution

The fourth proportional to 387,964.93, 535,637.55 and 265,661.95 is: 366,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,964.93 : 535,637.55 = 265,661.95 : x
  2. Step 2: Convert to fraction form
    387,964.93/535,637.55 = 265,661.95/x
  3. Step 3: Cross multiply
    387,964.93x = 535,637.55 × 265,661.95
  4. Step 4: Simplify right side
    387,964.93x = 142,298,516,026.22
  5. Step 5: Solve for x
    x = 142,298,516,026.22/387,964.93
  6. Step 6: Final answer
    x = 366,781.90

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