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Finding the Fourth Proportional to 253,239.44, 349,128.44 and 162,437.78

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Solution

The fourth proportional to 253,239.44, 349,128.44 and 162,437.78 is: 223,944.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,239.44 : 349,128.44 = 162,437.78 : x
  2. Step 2: Convert to fraction form
    253,239.44/349,128.44 = 162,437.78/x
  3. Step 3: Cross multiply
    253,239.44x = 349,128.44 × 162,437.78
  4. Step 4: Simplify right side
    253,239.44x = 56,711,650,311.95
  5. Step 5: Solve for x
    x = 56,711,650,311.95/253,239.44
  6. Step 6: Final answer
    x = 223,944.78

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1.5x scale

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.