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Finding the Fourth Proportional to 251,898.85, 347,613.65 and 137,175.20

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Solution

The fourth proportional to 251,898.85, 347,613.65 and 137,175.20 is: 189,298.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,898.85 : 347,613.65 = 137,175.20 : x
  2. Step 2: Convert to fraction form
    251,898.85/347,613.65 = 137,175.20/x
  3. Step 3: Cross multiply
    251,898.85x = 347,613.65 × 137,175.20
  4. Step 4: Simplify right side
    251,898.85x = 47,683,971,275.60
  5. Step 5: Solve for x
    x = 47,683,971,275.60/251,898.85
  6. Step 6: Final answer
    x = 189,298.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.