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Finding the Third Proportional to 343,960 and 495,430

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Solution

The third proportional to 343,960 and 495,430 is: 713,602.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,960 : 495,430 = 495,430 : x
  2. Step 2: Convert to fraction form
    343,960/495,430 = 495,430/x
  3. Step 3: Cross multiply
    343,960x = 495,430 × 495,430
  4. Step 4: Simplify right side
    343,960x = 245,450,884,900
  5. Step 5: Solve for x
    x = 245,450,884,900/343,960
  6. Step 6: Final answer
    x = 713,602.99

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.