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Finding the Fourth Proportional to 503,803.20, 755,688.60 and 166,859.40

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Solution

The fourth proportional to 503,803.20, 755,688.60 and 166,859.40 is: 250,283.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,803.20 : 755,688.60 = 166,859.40 : x
  2. Step 2: Convert to fraction form
    503,803.20/755,688.60 = 166,859.40/x
  3. Step 3: Cross multiply
    503,803.20x = 755,688.60 × 166,859.40
  4. Step 4: Simplify right side
    503,803.20x = 126,093,746,382.84
  5. Step 5: Solve for x
    x = 126,093,746,382.84/503,803.20
  6. Step 6: Final answer
    x = 250,283.73

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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.