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Finding the Third Proportional to 153,000 and 331,410

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Solution

The third proportional to 153,000 and 331,410 is: 717,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,000 : 331,410 = 331,410 : x
  2. Step 2: Convert to fraction form
    153,000/331,410 = 331,410/x
  3. Step 3: Cross multiply
    153,000x = 331,410 × 331,410
  4. Step 4: Simplify right side
    153,000x = 109,832,588,100
  5. Step 5: Solve for x
    x = 109,832,588,100/153,000
  6. Step 6: Final answer
    x = 717,860.05

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.