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Finding the Fourth Proportional to 303,469.20, 455,203.80 and 191,276.10

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Solution

The fourth proportional to 303,469.20, 455,203.80 and 191,276.10 is: 286,914.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,469.20 : 455,203.80 = 191,276.10 : x
  2. Step 2: Convert to fraction form
    303,469.20/455,203.80 = 191,276.10/x
  3. Step 3: Cross multiply
    303,469.20x = 455,203.80 × 191,276.10
  4. Step 4: Simplify right side
    303,469.20x = 87,069,607,569.18
  5. Step 5: Solve for x
    x = 87,069,607,569.18/303,469.20
  6. Step 6: Final answer
    x = 286,914.15

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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.