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Finding the Fourth Proportional to 285,103.04, 427,797.12 and 127,444.64

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Solution

The fourth proportional to 285,103.04, 427,797.12 and 127,444.64 is: 191,230.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,103.04 : 427,797.12 = 127,444.64 : x
  2. Step 2: Convert to fraction form
    285,103.04/427,797.12 = 127,444.64/x
  3. Step 3: Cross multiply
    285,103.04x = 427,797.12 × 127,444.64
  4. Step 4: Simplify right side
    285,103.04x = 54,520,449,951.44
  5. Step 5: Solve for x
    x = 54,520,449,951.44/285,103.04
  6. Step 6: Final answer
    x = 191,230.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.