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Finding the Fourth Proportional to 235,296.96, 352,907.52 and 85,531.20

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Solution

The fourth proportional to 235,296.96, 352,907.52 and 85,531.20 is: 128,283.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,296.96 : 352,907.52 = 85,531.20 : x
  2. Step 2: Convert to fraction form
    235,296.96/352,907.52 = 85,531.20/x
  3. Step 3: Cross multiply
    235,296.96x = 352,907.52 × 85,531.20
  4. Step 4: Simplify right side
    235,296.96x = 30,184,603,674.62
  5. Step 5: Solve for x
    x = 30,184,603,674.62/235,296.96
  6. Step 6: Final answer
    x = 128,283.02

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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.