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Finding the Third Proportional to 216,948 and 328,482

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Solution

The third proportional to 216,948 and 328,482 is: 497,356.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,948 : 328,482 = 328,482 : x
  2. Step 2: Convert to fraction form
    216,948/328,482 = 328,482/x
  3. Step 3: Cross multiply
    216,948x = 328,482 × 328,482
  4. Step 4: Simplify right side
    216,948x = 107,900,424,324
  5. Step 5: Solve for x
    x = 107,900,424,324/216,948
  6. Step 6: Final answer
    x = 497,356.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.