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Finding the Third Proportional to 216,345 and 473,408

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Solution

The third proportional to 216,345 and 473,408 is: 1,035,915.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,345 : 473,408 = 473,408 : x
  2. Step 2: Convert to fraction form
    216,345/473,408 = 473,408/x
  3. Step 3: Cross multiply
    216,345x = 473,408 × 473,408
  4. Step 4: Simplify right side
    216,345x = 224,115,134,464
  5. Step 5: Solve for x
    x = 224,115,134,464/216,345
  6. Step 6: Final answer
    x = 1,035,915.48

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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.