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Finding the Third Proportional to 281,482 and 424,639

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Solution

The third proportional to 281,482 and 424,639 is: 640,603.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,482 : 424,639 = 424,639 : x
  2. Step 2: Convert to fraction form
    281,482/424,639 = 424,639/x
  3. Step 3: Cross multiply
    281,482x = 424,639 × 424,639
  4. Step 4: Simplify right side
    281,482x = 180,318,280,321
  5. Step 5: Solve for x
    x = 180,318,280,321/281,482
  6. Step 6: Final answer
    x = 640,603.24

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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.