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Finding the Fourth Proportional to 185,855.92, 256,480.50 and 100,972.24

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Solution

The fourth proportional to 185,855.92, 256,480.50 and 100,972.24 is: 139,341.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,855.92 : 256,480.50 = 100,972.24 : x
  2. Step 2: Convert to fraction form
    185,855.92/256,480.50 = 100,972.24/x
  3. Step 3: Cross multiply
    185,855.92x = 256,480.50 × 100,972.24
  4. Step 4: Simplify right side
    185,855.92x = 25,897,410,601.32
  5. Step 5: Solve for x
    x = 25,897,410,601.32/185,855.92
  6. Step 6: Final answer
    x = 139,341.33

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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.