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Finding the Fourth Proportional to 304,866.40, 457,299.60 and 198,578.20

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Solution

The fourth proportional to 304,866.40, 457,299.60 and 198,578.20 is: 297,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,866.40 : 457,299.60 = 198,578.20 : x
  2. Step 2: Convert to fraction form
    304,866.40/457,299.60 = 198,578.20/x
  3. Step 3: Cross multiply
    304,866.40x = 457,299.60 × 198,578.20
  4. Step 4: Simplify right side
    304,866.40x = 90,809,731,428.72
  5. Step 5: Solve for x
    x = 90,809,731,428.72/304,866.40
  6. Step 6: Final answer
    x = 297,867.30

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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.