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Finding the Fourth Proportional to 228,607.26, 342,584.12 and 128,557.44

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Solution

The fourth proportional to 228,607.26, 342,584.12 and 128,557.44 is: 192,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,607.26 : 342,584.12 = 128,557.44 : x
  2. Step 2: Convert to fraction form
    228,607.26/342,584.12 = 128,557.44/x
  3. Step 3: Cross multiply
    228,607.26x = 342,584.12 × 128,557.44
  4. Step 4: Simplify right side
    228,607.26x = 44,041,737,451.85
  5. Step 5: Solve for x
    x = 44,041,737,451.85/228,607.26
  6. Step 6: Final answer
    x = 192,652.40

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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.