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Finding the Fourth Proportional to 418,666.91, 577,754.91 and 227,676.20

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Solution

The fourth proportional to 418,666.91, 577,754.91 and 227,676.20 is: 314,190.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,666.91 : 577,754.91 = 227,676.20 : x
  2. Step 2: Convert to fraction form
    418,666.91/577,754.91 = 227,676.20/x
  3. Step 3: Cross multiply
    418,666.91x = 577,754.91 × 227,676.20
  4. Step 4: Simplify right side
    418,666.91x = 131,541,039,551.37
  5. Step 5: Solve for x
    x = 131,541,039,551.37/418,666.91
  6. Step 6: Final answer
    x = 314,190.20

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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.