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Finding the Fourth Proportional to 303,317.10, 454,987.26 and 78,671.66

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Solution

The fourth proportional to 303,317.10, 454,987.26 and 78,671.66 is: 118,010.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,317.10 : 454,987.26 = 78,671.66 : x
  2. Step 2: Convert to fraction form
    303,317.10/454,987.26 = 78,671.66/x
  3. Step 3: Cross multiply
    303,317.10x = 454,987.26 × 78,671.66
  4. Step 4: Simplify right side
    303,317.10x = 35,794,600,748.12
  5. Step 5: Solve for x
    x = 35,794,600,748.12/303,317.10
  6. Step 6: Final answer
    x = 118,010.49

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