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Finding the Third Proportional to 147,400 and 346,479

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Solution

The third proportional to 147,400 and 346,479 is: 814,434.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,400 : 346,479 = 346,479 : x
  2. Step 2: Convert to fraction form
    147,400/346,479 = 346,479/x
  3. Step 3: Cross multiply
    147,400x = 346,479 × 346,479
  4. Step 4: Simplify right side
    147,400x = 120,047,697,441
  5. Step 5: Solve for x
    x = 120,047,697,441/147,400
  6. Step 6: Final answer
    x = 814,434.85

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.