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Finding the Third Proportional to 348,156 and 553,338

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Solution

The third proportional to 348,156 and 553,338 is: 879,441.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,156 : 553,338 = 553,338 : x
  2. Step 2: Convert to fraction form
    348,156/553,338 = 553,338/x
  3. Step 3: Cross multiply
    348,156x = 553,338 × 553,338
  4. Step 4: Simplify right side
    348,156x = 306,182,942,244
  5. Step 5: Solve for x
    x = 306,182,942,244/348,156
  6. Step 6: Final answer
    x = 879,441.81

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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.