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Finding the Fourth Proportional to 278,788.74, 384,747.50 and 157,931.02

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Solution

The fourth proportional to 278,788.74, 384,747.50 and 157,931.02 is: 217,955.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,788.74 : 384,747.50 = 157,931.02 : x
  2. Step 2: Convert to fraction form
    278,788.74/384,747.50 = 157,931.02/x
  3. Step 3: Cross multiply
    278,788.74x = 384,747.50 × 157,931.02
  4. Step 4: Simplify right side
    278,788.74x = 60,763,565,117.45
  5. Step 5: Solve for x
    x = 60,763,565,117.45/278,788.74
  6. Step 6: Final answer
    x = 217,955.59

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