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Finding the Fourth Proportional to 228,102.40, 341,505.60 and 215,689.60

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Solution

The fourth proportional to 228,102.40, 341,505.60 and 215,689.60 is: 322,921.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,102.40 : 341,505.60 = 215,689.60 : x
  2. Step 2: Convert to fraction form
    228,102.40/341,505.60 = 215,689.60/x
  3. Step 3: Cross multiply
    228,102.40x = 341,505.60 × 215,689.60
  4. Step 4: Simplify right side
    228,102.40x = 73,659,206,261.76
  5. Step 5: Solve for x
    x = 73,659,206,261.76/228,102.40
  6. Step 6: Final answer
    x = 322,921.66

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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.