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Finding the Third Proportional to 118,915 and 254,434

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Solution

The third proportional to 118,915 and 254,434 is: 544,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,915 : 254,434 = 254,434 : x
  2. Step 2: Convert to fraction form
    118,915/254,434 = 254,434/x
  3. Step 3: Cross multiply
    118,915x = 254,434 × 254,434
  4. Step 4: Simplify right side
    118,915x = 64,736,660,356
  5. Step 5: Solve for x
    x = 64,736,660,356/118,915
  6. Step 6: Final answer
    x = 544,394.40

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.