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Finding the Fourth Proportional to 298,045.71, 447,082.20 and 98,383.41

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Solution

The fourth proportional to 298,045.71, 447,082.20 and 98,383.41 is: 147,579.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,045.71 : 447,082.20 = 98,383.41 : x
  2. Step 2: Convert to fraction form
    298,045.71/447,082.20 = 98,383.41/x
  3. Step 3: Cross multiply
    298,045.71x = 447,082.20 × 98,383.41
  4. Step 4: Simplify right side
    298,045.71x = 43,985,471,386.30
  5. Step 5: Solve for x
    x = 43,985,471,386.30/298,045.71
  6. Step 6: Final answer
    x = 147,579.62

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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.