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Finding the Fourth Proportional to 298,446.91, 447,388.96 and 148,545.49

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Solution

The fourth proportional to 298,446.91, 447,388.96 and 148,545.49 is: 222,678.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,446.91 : 447,388.96 = 148,545.49 : x
  2. Step 2: Convert to fraction form
    298,446.91/447,388.96 = 148,545.49/x
  3. Step 3: Cross multiply
    298,446.91x = 447,388.96 × 148,545.49
  4. Step 4: Simplify right side
    298,446.91x = 66,457,612,283.79
  5. Step 5: Solve for x
    x = 66,457,612,283.79/298,446.91
  6. Step 6: Final answer
    x = 222,678.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.