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Finding the Fourth Proportional to 475,014.43, 655,520.34 and 257,222.44

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Solution

The fourth proportional to 475,014.43, 655,520.34 and 257,222.44 is: 354,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,014.43 : 655,520.34 = 257,222.44 : x
  2. Step 2: Convert to fraction form
    475,014.43/655,520.34 = 257,222.44/x
  3. Step 3: Cross multiply
    475,014.43x = 655,520.34 × 257,222.44
  4. Step 4: Simplify right side
    475,014.43x = 168,614,541,324.43
  5. Step 5: Solve for x
    x = 168,614,541,324.43/475,014.43
  6. Step 6: Final answer
    x = 354,967.20

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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.