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Finding the Fourth Proportional to 303,657.70, 455,486.55 and 204,124.90

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Solution

The fourth proportional to 303,657.70, 455,486.55 and 204,124.90 is: 306,187.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,657.70 : 455,486.55 = 204,124.90 : x
  2. Step 2: Convert to fraction form
    303,657.70/455,486.55 = 204,124.90/x
  3. Step 3: Cross multiply
    303,657.70x = 455,486.55 × 204,124.90
  4. Step 4: Simplify right side
    303,657.70x = 92,976,146,470.10
  5. Step 5: Solve for x
    x = 92,976,146,470.10/303,657.70
  6. Step 6: Final answer
    x = 306,187.35

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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.