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Finding the Fourth Proportional to 437,481.80, 656,222.70 and 141,993.80

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Solution

The fourth proportional to 437,481.80, 656,222.70 and 141,993.80 is: 212,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,481.80 : 656,222.70 = 141,993.80 : x
  2. Step 2: Convert to fraction form
    437,481.80/656,222.70 = 141,993.80/x
  3. Step 3: Cross multiply
    437,481.80x = 656,222.70 × 141,993.80
  4. Step 4: Simplify right side
    437,481.80x = 93,179,554,819.26
  5. Step 5: Solve for x
    x = 93,179,554,819.26/437,481.80
  6. Step 6: Final answer
    x = 212,990.70

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1.5x scale

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.