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Finding the Fourth Proportional to 303,656.20, 455,759.70 and 154,000.60

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Solution

The fourth proportional to 303,656.20, 455,759.70 and 154,000.60 is: 231,140.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,656.20 : 455,759.70 = 154,000.60 : x
  2. Step 2: Convert to fraction form
    303,656.20/455,759.70 = 154,000.60/x
  3. Step 3: Cross multiply
    303,656.20x = 455,759.70 × 154,000.60
  4. Step 4: Simplify right side
    303,656.20x = 70,187,267,255.82
  5. Step 5: Solve for x
    x = 70,187,267,255.82/303,656.20
  6. Step 6: Final answer
    x = 231,140.57

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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.