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Finding the Third Proportional to 115,316 and 147,348

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Solution

The third proportional to 115,316 and 147,348 is: 188,277.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,316 : 147,348 = 147,348 : x
  2. Step 2: Convert to fraction form
    115,316/147,348 = 147,348/x
  3. Step 3: Cross multiply
    115,316x = 147,348 × 147,348
  4. Step 4: Simplify right side
    115,316x = 21,711,433,104
  5. Step 5: Solve for x
    x = 21,711,433,104/115,316
  6. Step 6: Final answer
    x = 188,277.72

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.