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Finding the Fourth Proportional to 303,268.60, 454,902.90 and 145,415.80

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Solution

The fourth proportional to 303,268.60, 454,902.90 and 145,415.80 is: 218,123.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,268.60 : 454,902.90 = 145,415.80 : x
  2. Step 2: Convert to fraction form
    303,268.60/454,902.90 = 145,415.80/x
  3. Step 3: Cross multiply
    303,268.60x = 454,902.90 × 145,415.80
  4. Step 4: Simplify right side
    303,268.60x = 66,150,069,125.82
  5. Step 5: Solve for x
    x = 66,150,069,125.82/303,268.60
  6. Step 6: Final answer
    x = 218,123.70

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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.