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Finding the Fourth Proportional to 171,238.40, 256,876.80 and 52,908.80

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Solution

The fourth proportional to 171,238.40, 256,876.80 and 52,908.80 is: 79,369.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,238.40 : 256,876.80 = 52,908.80 : x
  2. Step 2: Convert to fraction form
    171,238.40/256,876.80 = 52,908.80/x
  3. Step 3: Cross multiply
    171,238.40x = 256,876.80 × 52,908.80
  4. Step 4: Simplify right side
    171,238.40x = 13,591,043,235.84
  5. Step 5: Solve for x
    x = 13,591,043,235.84/171,238.40
  6. Step 6: Final answer
    x = 79,369.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.