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Finding the Fourth Proportional to 303,291.88, 454,991.36 and 103,565.47

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Solution

The fourth proportional to 303,291.88, 454,991.36 and 103,565.47 is: 155,366.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,291.88 : 454,991.36 = 103,565.47 : x
  2. Step 2: Convert to fraction form
    303,291.88/454,991.36 = 103,565.47/x
  3. Step 3: Cross multiply
    303,291.88x = 454,991.36 × 103,565.47
  4. Step 4: Simplify right side
    303,291.88x = 47,121,394,044.34
  5. Step 5: Solve for x
    x = 47,121,394,044.34/303,291.88
  6. Step 6: Final answer
    x = 155,366.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.