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Finding the Fourth Proportional to 304,456.80, 457,059.60 and 192,136.80

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Solution

The fourth proportional to 304,456.80, 457,059.60 and 192,136.80 is: 288,441.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,456.80 : 457,059.60 = 192,136.80 : x
  2. Step 2: Convert to fraction form
    304,456.80/457,059.60 = 192,136.80/x
  3. Step 3: Cross multiply
    304,456.80x = 457,059.60 × 192,136.80
  4. Step 4: Simplify right side
    304,456.80x = 87,817,968,953.28
  5. Step 5: Solve for x
    x = 87,817,968,953.28/304,456.80
  6. Step 6: Final answer
    x = 288,441.48

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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.