Home / 298,278.82-447,418.32-245,577.61

Finding the Fourth Proportional to 298,278.82, 447,418.32 and 245,577.61

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Solution

The fourth proportional to 298,278.82, 447,418.32 and 245,577.61 is: 368,366.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,278.82 : 447,418.32 = 245,577.61 : x
  2. Step 2: Convert to fraction form
    298,278.82/447,418.32 = 245,577.61/x
  3. Step 3: Cross multiply
    298,278.82x = 447,418.32 × 245,577.61
  4. Step 4: Simplify right side
    298,278.82x = 109,875,921,695.82
  5. Step 5: Solve for x
    x = 109,875,921,695.82/298,278.82
  6. Step 6: Final answer
    x = 368,366.49

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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.