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Finding the Fourth Proportional to 545,805.06, 818,817.30 and 230,260.56

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Solution

The fourth proportional to 545,805.06, 818,817.30 and 230,260.56 is: 345,437.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,805.06 : 818,817.30 = 230,260.56 : x
  2. Step 2: Convert to fraction form
    545,805.06/818,817.30 = 230,260.56/x
  3. Step 3: Cross multiply
    545,805.06x = 818,817.30 × 230,260.56
  4. Step 4: Simplify right side
    545,805.06x = 188,541,330,035.69
  5. Step 5: Solve for x
    x = 188,541,330,035.69/545,805.06
  6. Step 6: Final answer
    x = 345,437.12

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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.