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Finding the Fourth Proportional to 235,368.96, 352,942.52 and 85,503.60

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Solution

The fourth proportional to 235,368.96, 352,942.52 and 85,503.60 is: 128,215.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,368.96 : 352,942.52 = 85,503.60 : x
  2. Step 2: Convert to fraction form
    235,368.96/352,942.52 = 85,503.60/x
  3. Step 3: Cross multiply
    235,368.96x = 352,942.52 × 85,503.60
  4. Step 4: Simplify right side
    235,368.96x = 30,177,856,053.07
  5. Step 5: Solve for x
    x = 30,177,856,053.07/235,368.96
  6. Step 6: Final answer
    x = 128,215.11

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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.