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Finding the Third Proportional to 297,130 and 447,117

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Solution

The third proportional to 297,130 and 447,117 is: 672,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,130 : 447,117 = 447,117 : x
  2. Step 2: Convert to fraction form
    297,130/447,117 = 447,117/x
  3. Step 3: Cross multiply
    297,130x = 447,117 × 447,117
  4. Step 4: Simplify right side
    297,130x = 199,913,611,689
  5. Step 5: Solve for x
    x = 199,913,611,689/297,130
  6. Step 6: Final answer
    x = 672,815.31

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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.