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Finding the Fourth Proportional to 235,530.40, 352,777.20 and 141,872.80

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Solution

The fourth proportional to 235,530.40, 352,777.20 and 141,872.80 is: 212,496.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,530.40 : 352,777.20 = 141,872.80 : x
  2. Step 2: Convert to fraction form
    235,530.40/352,777.20 = 141,872.80/x
  3. Step 3: Cross multiply
    235,530.40x = 352,777.20 × 141,872.80
  4. Step 4: Simplify right side
    235,530.40x = 50,049,489,140.16
  5. Step 5: Solve for x
    x = 50,049,489,140.16/235,530.40
  6. Step 6: Final answer
    x = 212,496.94

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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.