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Finding the Fourth Proportional to 418,713.37, 577,827.18 and 227,728.15

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Solution

The fourth proportional to 418,713.37, 577,827.18 and 227,728.15 is: 314,266.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,713.37 : 577,827.18 = 227,728.15 : x
  2. Step 2: Convert to fraction form
    418,713.37/577,827.18 = 227,728.15/x
  3. Step 3: Cross multiply
    418,713.37x = 577,827.18 × 227,728.15
  4. Step 4: Simplify right side
    418,713.37x = 131,587,514,721.12
  5. Step 5: Solve for x
    x = 131,587,514,721.12/418,713.37
  6. Step 6: Final answer
    x = 314,266.33

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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.