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Finding the Fourth Proportional to 235,328.70, 352,917.21 and 77,519.58

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Solution

The fourth proportional to 235,328.70, 352,917.21 and 77,519.58 is: 116,254.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,328.70 : 352,917.21 = 77,519.58 : x
  2. Step 2: Convert to fraction form
    235,328.70/352,917.21 = 77,519.58/x
  3. Step 3: Cross multiply
    235,328.70x = 352,917.21 × 77,519.58
  4. Step 4: Simplify right side
    235,328.70x = 27,357,993,893.97
  5. Step 5: Solve for x
    x = 27,357,993,893.97/235,328.70
  6. Step 6: Final answer
    x = 116,254.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.