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Finding the Fourth Proportional to 303,513.60, 454,233.60 and 266,188.80

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Solution

The fourth proportional to 303,513.60, 454,233.60 and 266,188.80 is: 398,373.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,513.60 : 454,233.60 = 266,188.80 : x
  2. Step 2: Convert to fraction form
    303,513.60/454,233.60 = 266,188.80/x
  3. Step 3: Cross multiply
    303,513.60x = 454,233.60 × 266,188.80
  4. Step 4: Simplify right side
    303,513.60x = 120,911,896,903.68
  5. Step 5: Solve for x
    x = 120,911,896,903.68/303,513.60
  6. Step 6: Final answer
    x = 398,373.90

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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.