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Finding the Fourth Proportional to 283,959.72, 391,864.80 and 163,124.40

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Solution

The fourth proportional to 283,959.72, 391,864.80 and 163,124.40 is: 225,111.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,959.72 : 391,864.80 = 163,124.40 : x
  2. Step 2: Convert to fraction form
    283,959.72/391,864.80 = 163,124.40/x
  3. Step 3: Cross multiply
    283,959.72x = 391,864.80 × 163,124.40
  4. Step 4: Simplify right side
    283,959.72x = 63,922,710,381.12
  5. Step 5: Solve for x
    x = 63,922,710,381.12/283,959.72
  6. Step 6: Final answer
    x = 225,111.89

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