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Finding the Fourth Proportional to 185,263.68, 255,663.94 and 100,380.76

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Solution

The fourth proportional to 185,263.68, 255,663.94 and 100,380.76 is: 138,525.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,263.68 : 255,663.94 = 100,380.76 : x
  2. Step 2: Convert to fraction form
    185,263.68/255,663.94 = 100,380.76/x
  3. Step 3: Cross multiply
    185,263.68x = 255,663.94 × 100,380.76
  4. Step 4: Simplify right side
    185,263.68x = 25,663,740,601.79
  5. Step 5: Solve for x
    x = 25,663,740,601.79/185,263.68
  6. Step 6: Final answer
    x = 138,525.48

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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.