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Finding the Third Proportional to 252,688 and 549,920

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Solution

The third proportional to 252,688 and 549,920 is: 1,196,780.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,688 : 549,920 = 549,920 : x
  2. Step 2: Convert to fraction form
    252,688/549,920 = 549,920/x
  3. Step 3: Cross multiply
    252,688x = 549,920 × 549,920
  4. Step 4: Simplify right side
    252,688x = 302,412,006,400
  5. Step 5: Solve for x
    x = 302,412,006,400/252,688
  6. Step 6: Final answer
    x = 1,196,780.24

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.