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Finding the Fourth Proportional to 228,307.52, 342,405.90 and 95,115.12

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Solution

The fourth proportional to 228,307.52, 342,405.90 and 95,115.12 is: 142,649.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,307.52 : 342,405.90 = 95,115.12 : x
  2. Step 2: Convert to fraction form
    228,307.52/342,405.90 = 95,115.12/x
  3. Step 3: Cross multiply
    228,307.52x = 342,405.90 × 95,115.12
  4. Step 4: Simplify right side
    228,307.52x = 32,567,978,267.21
  5. Step 5: Solve for x
    x = 32,567,978,267.21/228,307.52
  6. Step 6: Final answer
    x = 142,649.61

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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.