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Finding the Fourth Proportional to 298,981.40, 448,472.10 and 245,837.30

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Solution

The fourth proportional to 298,981.40, 448,472.10 and 245,837.30 is: 368,755.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,981.40 : 448,472.10 = 245,837.30 : x
  2. Step 2: Convert to fraction form
    298,981.40/448,472.10 = 245,837.30/x
  3. Step 3: Cross multiply
    298,981.40x = 448,472.10 × 245,837.30
  4. Step 4: Simplify right side
    298,981.40x = 110,251,170,189.33
  5. Step 5: Solve for x
    x = 110,251,170,189.33/298,981.40
  6. Step 6: Final answer
    x = 368,755.95

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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.