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Finding the Fourth Proportional to 228,070.66, 342,120.04 and 87,829.42

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Solution

The fourth proportional to 228,070.66, 342,120.04 and 87,829.42 is: 131,749.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,070.66 : 342,120.04 = 87,829.42 : x
  2. Step 2: Convert to fraction form
    228,070.66/342,120.04 = 87,829.42/x
  3. Step 3: Cross multiply
    228,070.66x = 342,120.04 × 87,829.42
  4. Step 4: Simplify right side
    228,070.66x = 30,048,204,683.58
  5. Step 5: Solve for x
    x = 30,048,204,683.58/228,070.66
  6. Step 6: Final answer
    x = 131,749.54

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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.