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Finding the Fourth Proportional to 253,383.68, 349,613.94 and 151,393.82

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Solution

The fourth proportional to 253,383.68, 349,613.94 and 151,393.82 is: 208,890.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,383.68 : 349,613.94 = 151,393.82 : x
  2. Step 2: Convert to fraction form
    253,383.68/349,613.94 = 151,393.82/x
  3. Step 3: Cross multiply
    253,383.68x = 349,613.94 × 151,393.82
  4. Step 4: Simplify right side
    253,383.68x = 52,929,389,901.85
  5. Step 5: Solve for x
    x = 52,929,389,901.85/253,383.68
  6. Step 6: Final answer
    x = 208,890.29

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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.