Home / 418,156.79-577,060.43-227,171.55

Finding the Fourth Proportional to 418,156.79, 577,060.43 and 227,171.55

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Solution

The fourth proportional to 418,156.79, 577,060.43 and 227,171.55 is: 313,498.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,156.79 : 577,060.43 = 227,171.55 : x
  2. Step 2: Convert to fraction form
    418,156.79/577,060.43 = 227,171.55/x
  3. Step 3: Cross multiply
    418,156.79x = 577,060.43 × 227,171.55
  4. Step 4: Simplify right side
    418,156.79x = 131,091,711,190.91
  5. Step 5: Solve for x
    x = 131,091,711,190.91/418,156.79
  6. Step 6: Final answer
    x = 313,498.94

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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.