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Finding the Third Proportional to 148,905 and 324,572

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Solution

The third proportional to 148,905 and 324,572 is: 707,477.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,905 : 324,572 = 324,572 : x
  2. Step 2: Convert to fraction form
    148,905/324,572 = 324,572/x
  3. Step 3: Cross multiply
    148,905x = 324,572 × 324,572
  4. Step 4: Simplify right side
    148,905x = 105,346,983,184
  5. Step 5: Solve for x
    x = 105,346,983,184/148,905
  6. Step 6: Final answer
    x = 707,477.81

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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.