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Finding the Third Proportional to 348,878 and 553,341

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Solution

The third proportional to 348,878 and 553,341 is: 877,631.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,878 : 553,341 = 553,341 : x
  2. Step 2: Convert to fraction form
    348,878/553,341 = 553,341/x
  3. Step 3: Cross multiply
    348,878x = 553,341 × 553,341
  4. Step 4: Simplify right side
    348,878x = 306,186,262,281
  5. Step 5: Solve for x
    x = 306,186,262,281/348,878
  6. Step 6: Final answer
    x = 877,631.33

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.