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Finding the Fourth Proportional to 303,273.60, 454,910.40 and 145,420.80

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Solution

The fourth proportional to 303,273.60, 454,910.40 and 145,420.80 is: 218,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,273.60 : 454,910.40 = 145,420.80 : x
  2. Step 2: Convert to fraction form
    303,273.60/454,910.40 = 145,420.80/x
  3. Step 3: Cross multiply
    303,273.60x = 454,910.40 × 145,420.80
  4. Step 4: Simplify right side
    303,273.60x = 66,153,434,296.32
  5. Step 5: Solve for x
    x = 66,153,434,296.32/303,273.60
  6. Step 6: Final answer
    x = 218,131.20

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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.