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Finding the Fourth Proportional to 418,259.17, 577,201.30 and 227,272.56

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Solution

The fourth proportional to 418,259.17, 577,201.30 and 227,272.56 is: 313,638.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,259.17 : 577,201.30 = 227,272.56 : x
  2. Step 2: Convert to fraction form
    418,259.17/577,201.30 = 227,272.56/x
  3. Step 3: Cross multiply
    418,259.17x = 577,201.30 × 227,272.56
  4. Step 4: Simplify right side
    418,259.17x = 131,182,017,086.33
  5. Step 5: Solve for x
    x = 131,182,017,086.33/418,259.17
  6. Step 6: Final answer
    x = 313,638.11

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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.