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Finding the Fourth Proportional to 185,152.80, 255,509.88 and 100,269.12

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Solution

The fourth proportional to 185,152.80, 255,509.88 and 100,269.12 is: 138,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,152.80 : 255,509.88 = 100,269.12 : x
  2. Step 2: Convert to fraction form
    185,152.80/255,509.88 = 100,269.12/x
  3. Step 3: Cross multiply
    185,152.80x = 255,509.88 × 100,269.12
  4. Step 4: Simplify right side
    185,152.80x = 25,619,750,818.91
  5. Step 5: Solve for x
    x = 25,619,750,818.91/185,152.80
  6. Step 6: Final answer
    x = 138,370.85

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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.