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Finding the Third Proportional to 284,912 and 442,908.50

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Solution

The third proportional to 284,912 and 442,908.50 is: 688,521.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,912 : 442,908.50 = 442,908.50 : x
  2. Step 2: Convert to fraction form
    284,912/442,908.50 = 442,908.50/x
  3. Step 3: Cross multiply
    284,912x = 442,908.50 × 442,908.50
  4. Step 4: Simplify right side
    284,912x = 196,167,939,372.25
  5. Step 5: Solve for x
    x = 196,167,939,372.25/284,912
  6. Step 6: Final answer
    x = 688,521.16

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.