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Finding the Fourth Proportional to 304,605.36, 456,388.02 and 215,711.10

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Solution

The fourth proportional to 304,605.36, 456,388.02 and 215,711.10 is: 323,198.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,605.36 : 456,388.02 = 215,711.10 : x
  2. Step 2: Convert to fraction form
    304,605.36/456,388.02 = 215,711.10/x
  3. Step 3: Cross multiply
    304,605.36x = 456,388.02 × 215,711.10
  4. Step 4: Simplify right side
    304,605.36x = 98,447,961,821.02
  5. Step 5: Solve for x
    x = 98,447,961,821.02/304,605.36
  6. Step 6: Final answer
    x = 323,198.39

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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.