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Finding the Fourth Proportional to 253,045.71, 349,203.42 and 145,613.61

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Solution

The fourth proportional to 253,045.71, 349,203.42 and 145,613.61 is: 200,946.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,045.71 : 349,203.42 = 145,613.61 : x
  2. Step 2: Convert to fraction form
    253,045.71/349,203.42 = 145,613.61/x
  3. Step 3: Cross multiply
    253,045.71x = 349,203.42 × 145,613.61
  4. Step 4: Simplify right side
    253,045.71x = 50,848,770,610.55
  5. Step 5: Solve for x
    x = 50,848,770,610.55/253,045.71
  6. Step 6: Final answer
    x = 200,946.98

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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.