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Finding the Fourth Proportional to 230,478.58, 345,717.79 and 55,374.58

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Solution

The fourth proportional to 230,478.58, 345,717.79 and 55,374.58 is: 83,061.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,478.58 : 345,717.79 = 55,374.58 : x
  2. Step 2: Convert to fraction form
    230,478.58/345,717.79 = 55,374.58/x
  3. Step 3: Cross multiply
    230,478.58x = 345,717.79 × 55,374.58
  4. Step 4: Simplify right side
    230,478.58x = 19,143,977,419.78
  5. Step 5: Solve for x
    x = 19,143,977,419.78/230,478.58
  6. Step 6: Final answer
    x = 83,061.85

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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.