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Finding the Fourth Proportional to 219,307.48, 328,763.58 and 100,917.88

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Solution

The fourth proportional to 219,307.48, 328,763.58 and 100,917.88 is: 151,285.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,307.48 : 328,763.58 = 100,917.88 : x
  2. Step 2: Convert to fraction form
    219,307.48/328,763.58 = 100,917.88/x
  3. Step 3: Cross multiply
    219,307.48x = 328,763.58 × 100,917.88
  4. Step 4: Simplify right side
    219,307.48x = 33,178,123,514.81
  5. Step 5: Solve for x
    x = 33,178,123,514.81/219,307.48
  6. Step 6: Final answer
    x = 151,285.87

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