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Finding the Fourth Proportional to 303,195.51, 454,794.57 and 78,539.94

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Solution

The fourth proportional to 303,195.51, 454,794.57 and 78,539.94 is: 117,810.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,195.51 : 454,794.57 = 78,539.94 : x
  2. Step 2: Convert to fraction form
    303,195.51/454,794.57 = 78,539.94/x
  3. Step 3: Cross multiply
    303,195.51x = 454,794.57 × 78,539.94
  4. Step 4: Simplify right side
    303,195.51x = 35,719,538,240.13
  5. Step 5: Solve for x
    x = 35,719,538,240.13/303,195.51
  6. Step 6: Final answer
    x = 117,810.25

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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.