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Finding the Fourth Proportional to 545,721.60, 818,693.52 and 230,179.68

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Solution

The fourth proportional to 545,721.60, 818,693.52 and 230,179.68 is: 345,316.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,721.60 : 818,693.52 = 230,179.68 : x
  2. Step 2: Convert to fraction form
    545,721.60/818,693.52 = 230,179.68/x
  3. Step 3: Cross multiply
    545,721.60x = 818,693.52 × 230,179.68
  4. Step 4: Simplify right side
    545,721.60x = 188,446,612,451.67
  5. Step 5: Solve for x
    x = 188,446,612,451.67/545,721.60
  6. Step 6: Final answer
    x = 345,316.39

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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.