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Finding the Fourth Proportional to 418,605.88, 577,664 and 237,334.62

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Solution

The fourth proportional to 418,605.88, 577,664 and 237,334.62 is: 327,514.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,605.88 : 577,664 = 237,334.62 : x
  2. Step 2: Convert to fraction form
    418,605.88/577,664 = 237,334.62/x
  3. Step 3: Cross multiply
    418,605.88x = 577,664 × 237,334.62
  4. Step 4: Simplify right side
    418,605.88x = 137,099,665,927.68
  5. Step 5: Solve for x
    x = 137,099,665,927.68/418,605.88
  6. Step 6: Final answer
    x = 327,514.91

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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.