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Finding the Fourth Proportional to 418,625.35, 577,696.39 and 227,637.07

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Solution

The fourth proportional to 418,625.35, 577,696.39 and 227,637.07 is: 314,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,625.35 : 577,696.39 = 227,637.07 : x
  2. Step 2: Convert to fraction form
    418,625.35/577,696.39 = 227,637.07/x
  3. Step 3: Cross multiply
    418,625.35x = 577,696.39 × 227,637.07
  4. Step 4: Simplify right side
    418,625.35x = 131,505,113,569.18
  5. Step 5: Solve for x
    x = 131,505,113,569.18/418,625.35
  6. Step 6: Final answer
    x = 314,135.57

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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.