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Finding the Fourth Proportional to 474,984.43, 655,479.51 and 257,195.48

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Solution

The fourth proportional to 474,984.43, 655,479.51 and 257,195.48 is: 354,930.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,984.43 : 655,479.51 = 257,195.48 : x
  2. Step 2: Convert to fraction form
    474,984.43/655,479.51 = 257,195.48/x
  3. Step 3: Cross multiply
    474,984.43x = 655,479.51 × 257,195.48
  4. Step 4: Simplify right side
    474,984.43x = 168,586,362,962.73
  5. Step 5: Solve for x
    x = 168,586,362,962.73/474,984.43
  6. Step 6: Final answer
    x = 354,930.29

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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.