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Finding the Fourth Proportional to 304,435.20, 456,681.60 and 82,819.20

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Solution

The fourth proportional to 304,435.20, 456,681.60 and 82,819.20 is: 124,236.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,435.20 : 456,681.60 = 82,819.20 : x
  2. Step 2: Convert to fraction form
    304,435.20/456,681.60 = 82,819.20/x
  3. Step 3: Cross multiply
    304,435.20x = 456,681.60 × 82,819.20
  4. Step 4: Simplify right side
    304,435.20x = 37,822,004,766.72
  5. Step 5: Solve for x
    x = 37,822,004,766.72/304,435.20
  6. Step 6: Final answer
    x = 124,236.63

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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.