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Finding the Fourth Proportional to 418,425.48, 577,414.98 and 227,433.96

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Solution

The fourth proportional to 418,425.48, 577,414.98 and 227,433.96 is: 313,852.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,425.48 : 577,414.98 = 227,433.96 : x
  2. Step 2: Convert to fraction form
    418,425.48/577,414.98 = 227,433.96/x
  3. Step 3: Cross multiply
    418,425.48x = 577,414.98 × 227,433.96
  4. Step 4: Simplify right side
    418,425.48x = 131,323,775,464.72
  5. Step 5: Solve for x
    x = 131,323,775,464.72/418,425.48
  6. Step 6: Final answer
    x = 313,852.24

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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.