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Finding the Fourth Proportional to 303,336.45, 455,168.70 and 125,861.40

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Solution

The fourth proportional to 303,336.45, 455,168.70 and 125,861.40 is: 188,860.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,336.45 : 455,168.70 = 125,861.40 : x
  2. Step 2: Convert to fraction form
    303,336.45/455,168.70 = 125,861.40/x
  3. Step 3: Cross multiply
    303,336.45x = 455,168.70 × 125,861.40
  4. Step 4: Simplify right side
    303,336.45x = 57,288,169,818.18
  5. Step 5: Solve for x
    x = 57,288,169,818.18/303,336.45
  6. Step 6: Final answer
    x = 188,860.16

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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.