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Finding the Fourth Proportional to 283,679.60, 425,519.40 and 256,031.60

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Solution

The fourth proportional to 283,679.60, 425,519.40 and 256,031.60 is: 384,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,679.60 : 425,519.40 = 256,031.60 : x
  2. Step 2: Convert to fraction form
    283,679.60/425,519.40 = 256,031.60/x
  3. Step 3: Cross multiply
    283,679.60x = 425,519.40 × 256,031.60
  4. Step 4: Simplify right side
    283,679.60x = 108,946,412,813.04
  5. Step 5: Solve for x
    x = 108,946,412,813.04/283,679.60
  6. Step 6: Final answer
    x = 384,047.40

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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.