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Finding the Fourth Proportional to 185,267.40, 255,669.24 and 100,384.40

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Solution

The fourth proportional to 185,267.40, 255,669.24 and 100,384.40 is: 138,530.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,267.40 : 255,669.24 = 100,384.40 : x
  2. Step 2: Convert to fraction form
    185,267.40/255,669.24 = 100,384.40/x
  3. Step 3: Cross multiply
    185,267.40x = 255,669.24 × 100,384.40
  4. Step 4: Simplify right side
    185,267.40x = 25,665,203,255.86
  5. Step 5: Solve for x
    x = 25,665,203,255.86/185,267.40
  6. Step 6: Final answer
    x = 138,530.60

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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.