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Finding the Fourth Proportional to 235,712.80, 353,050.80 and 230,528.80

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Solution

The fourth proportional to 235,712.80, 353,050.80 and 230,528.80 is: 345,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,712.80 : 353,050.80 = 230,528.80 : x
  2. Step 2: Convert to fraction form
    235,712.80/353,050.80 = 230,528.80/x
  3. Step 3: Cross multiply
    235,712.80x = 353,050.80 × 230,528.80
  4. Step 4: Simplify right side
    235,712.80x = 81,388,377,263.04
  5. Step 5: Solve for x
    x = 81,388,377,263.04/235,712.80
  6. Step 6: Final answer
    x = 345,286.20

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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.