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Finding the Third Proportional to 147,254 and 320,284

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Solution

The third proportional to 147,254 and 320,284 is: 696,631.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,254 : 320,284 = 320,284 : x
  2. Step 2: Convert to fraction form
    147,254/320,284 = 320,284/x
  3. Step 3: Cross multiply
    147,254x = 320,284 × 320,284
  4. Step 4: Simplify right side
    147,254x = 102,581,840,656
  5. Step 5: Solve for x
    x = 102,581,840,656/147,254
  6. Step 6: Final answer
    x = 696,631.95

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.