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Finding the Third Proportional to 281,396.85 and 615,341.50

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Solution

The third proportional to 281,396.85 and 615,341.50 is: 1,345,591.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,396.85 : 615,341.50 = 615,341.50 : x
  2. Step 2: Convert to fraction form
    281,396.85/615,341.50 = 615,341.50/x
  3. Step 3: Cross multiply
    281,396.85x = 615,341.50 × 615,341.50
  4. Step 4: Simplify right side
    281,396.85x = 378,645,156,814.90
  5. Step 5: Solve for x
    x = 378,645,156,814.90/281,396.85
  6. Step 6: Final answer
    x = 1,345,591.32

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.