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Finding the Fourth Proportional to 288,630.47, 398,310.66 and 161,306.07

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Solution

The fourth proportional to 288,630.47, 398,310.66 and 161,306.07 is: 222,602.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,630.47 : 398,310.66 = 161,306.07 : x
  2. Step 2: Convert to fraction form
    288,630.47/398,310.66 = 161,306.07/x
  3. Step 3: Cross multiply
    288,630.47x = 398,310.66 × 161,306.07
  4. Step 4: Simplify right side
    288,630.47x = 64,249,927,203.71
  5. Step 5: Solve for x
    x = 64,249,927,203.71/288,630.47
  6. Step 6: Final answer
    x = 222,602.72

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