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Finding the Fourth Proportional to 253,240.44, 349,129.82 and 162,438.78

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Solution

The fourth proportional to 253,240.44, 349,129.82 and 162,438.78 is: 223,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,240.44 : 349,129.82 = 162,438.78 : x
  2. Step 2: Convert to fraction form
    253,240.44/349,129.82 = 162,438.78/x
  3. Step 3: Cross multiply
    253,240.44x = 349,129.82 × 162,438.78
  4. Step 4: Simplify right side
    253,240.44x = 56,712,222,022.42
  5. Step 5: Solve for x
    x = 56,712,222,022.42/253,240.44
  6. Step 6: Final answer
    x = 223,946.15

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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.