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Finding the Fourth Proportional to 275,613.41, 413,477.53 and 138,913.36

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Solution

The fourth proportional to 275,613.41, 413,477.53 and 138,913.36 is: 208,398.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,613.41 : 413,477.53 = 138,913.36 : x
  2. Step 2: Convert to fraction form
    275,613.41/413,477.53 = 138,913.36/x
  3. Step 3: Cross multiply
    275,613.41x = 413,477.53 × 138,913.36
  4. Step 4: Simplify right side
    275,613.41x = 57,437,551,595.82
  5. Step 5: Solve for x
    x = 57,437,551,595.82/275,613.41
  6. Step 6: Final answer
    x = 208,398.97

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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.