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Finding the Third Proportional to 280,200 and 608,030

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Solution

The third proportional to 280,200 and 608,030 is: 1,319,416.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,200 : 608,030 = 608,030 : x
  2. Step 2: Convert to fraction form
    280,200/608,030 = 608,030/x
  3. Step 3: Cross multiply
    280,200x = 608,030 × 608,030
  4. Step 4: Simplify right side
    280,200x = 369,700,480,900
  5. Step 5: Solve for x
    x = 369,700,480,900/280,200
  6. Step 6: Final answer
    x = 1,319,416.42

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.