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Finding the Fourth Proportional to 418,157.63, 577,064.54 and 227,171.18

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Solution

The fourth proportional to 418,157.63, 577,064.54 and 227,171.18 is: 313,500.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,157.63 : 577,064.54 = 227,171.18 : x
  2. Step 2: Convert to fraction form
    418,157.63/577,064.54 = 227,171.18/x
  3. Step 3: Cross multiply
    418,157.63x = 577,064.54 × 227,171.18
  4. Step 4: Simplify right side
    418,157.63x = 131,092,430,170.56
  5. Step 5: Solve for x
    x = 131,092,430,170.56/418,157.63
  6. Step 6: Final answer
    x = 313,500.03

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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.