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Finding the Fourth Proportional to 253,383.80, 349,706.74 and 145,932.92

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Solution

The fourth proportional to 253,383.80, 349,706.74 and 145,932.92 is: 201,408.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,383.80 : 349,706.74 = 145,932.92 : x
  2. Step 2: Convert to fraction form
    253,383.80/349,706.74 = 145,932.92/x
  3. Step 3: Cross multiply
    253,383.80x = 349,706.74 × 145,932.92
  4. Step 4: Simplify right side
    253,383.80x = 51,033,725,711.88
  5. Step 5: Solve for x
    x = 51,033,725,711.88/253,383.80
  6. Step 6: Final answer
    x = 201,408.79

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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.