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Finding the Fourth Proportional to 282,909.72, 390,408 and 168,188.56

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Solution

The fourth proportional to 282,909.72, 390,408 and 168,188.56 is: 232,095.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,909.72 : 390,408 = 168,188.56 : x
  2. Step 2: Convert to fraction form
    282,909.72/390,408 = 168,188.56/x
  3. Step 3: Cross multiply
    282,909.72x = 390,408 × 168,188.56
  4. Step 4: Simplify right side
    282,909.72x = 65,662,159,332.48
  5. Step 5: Solve for x
    x = 65,662,159,332.48/282,909.72
  6. Step 6: Final answer
    x = 232,095.81

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