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Finding the Fourth Proportional to 306,898.98, 423,532.37 and 177,841.83

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Solution

The fourth proportional to 306,898.98, 423,532.37 and 177,841.83 is: 245,428.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,898.98 : 423,532.37 = 177,841.83 : x
  2. Step 2: Convert to fraction form
    306,898.98/423,532.37 = 177,841.83/x
  3. Step 3: Cross multiply
    306,898.98x = 423,532.37 × 177,841.83
  4. Step 4: Simplify right side
    306,898.98x = 75,321,770,895.34
  5. Step 5: Solve for x
    x = 75,321,770,895.34/306,898.98
  6. Step 6: Final answer
    x = 245,428.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.