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Finding the Fourth Proportional to 418,240.76, 577,175.76 and 227,254.15

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Solution

The fourth proportional to 418,240.76, 577,175.76 and 227,254.15 is: 313,612.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,240.76 : 577,175.76 = 227,254.15 : x
  2. Step 2: Convert to fraction form
    418,240.76/577,175.76 = 227,254.15/x
  3. Step 3: Cross multiply
    418,240.76x = 577,175.76 × 227,254.15
  4. Step 4: Simplify right side
    418,240.76x = 131,165,586,739.40
  5. Step 5: Solve for x
    x = 131,165,586,739.40/418,240.76
  6. Step 6: Final answer
    x = 313,612.63

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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.