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Finding the Fourth Proportional to 283,960.20, 425,940.30 and 84,311.40

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Solution

The fourth proportional to 283,960.20, 425,940.30 and 84,311.40 is: 126,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,960.20 : 425,940.30 = 84,311.40 : x
  2. Step 2: Convert to fraction form
    283,960.20/425,940.30 = 84,311.40/x
  3. Step 3: Cross multiply
    283,960.20x = 425,940.30 × 84,311.40
  4. Step 4: Simplify right side
    283,960.20x = 35,911,623,009.42
  5. Step 5: Solve for x
    x = 35,911,623,009.42/283,960.20
  6. Step 6: Final answer
    x = 126,467.10

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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.