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Finding the Fourth Proportional to 303,485.60, 454,191.60 and 266,160.80

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Solution

The fourth proportional to 303,485.60, 454,191.60 and 266,160.80 is: 398,331.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,485.60 : 454,191.60 = 266,160.80 : x
  2. Step 2: Convert to fraction form
    303,485.60/454,191.60 = 266,160.80/x
  3. Step 3: Cross multiply
    303,485.60x = 454,191.60 × 266,160.80
  4. Step 4: Simplify right side
    303,485.60x = 120,887,999,609.28
  5. Step 5: Solve for x
    x = 120,887,999,609.28/303,485.60
  6. Step 6: Final answer
    x = 398,331.91

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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.