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Finding the Fourth Proportional to 397,731.73, 548,864.08 and 218,883.73

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Solution

The fourth proportional to 397,731.73, 548,864.08 and 218,883.73 is: 302,056.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,731.73 : 548,864.08 = 218,883.73 : x
  2. Step 2: Convert to fraction form
    397,731.73/548,864.08 = 218,883.73/x
  3. Step 3: Cross multiply
    397,731.73x = 548,864.08 × 218,883.73
  4. Step 4: Simplify right side
    397,731.73x = 120,137,417,093.42
  5. Step 5: Solve for x
    x = 120,137,417,093.42/397,731.73
  6. Step 6: Final answer
    x = 302,056.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.