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Finding the Third Proportional to 147,604 and 316,206

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Solution

The third proportional to 147,604 and 316,206 is: 677,395.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,604 : 316,206 = 316,206 : x
  2. Step 2: Convert to fraction form
    147,604/316,206 = 316,206/x
  3. Step 3: Cross multiply
    147,604x = 316,206 × 316,206
  4. Step 4: Simplify right side
    147,604x = 99,986,234,436
  5. Step 5: Solve for x
    x = 99,986,234,436/147,604
  6. Step 6: Final answer
    x = 677,395.15

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.