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Finding the Fourth Proportional to 185,164.40, 255,525.60 and 100,279.52

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Solution

The fourth proportional to 185,164.40, 255,525.60 and 100,279.52 is: 138,385.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,164.40 : 255,525.60 = 100,279.52 : x
  2. Step 2: Convert to fraction form
    185,164.40/255,525.60 = 100,279.52/x
  3. Step 3: Cross multiply
    185,164.40x = 255,525.60 × 100,279.52
  4. Step 4: Simplify right side
    185,164.40x = 25,623,984,515.71
  5. Step 5: Solve for x
    x = 25,623,984,515.71/185,164.40
  6. Step 6: Final answer
    x = 138,385.05

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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.