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Finding the Fourth Proportional to 283,809.35, 425,715.72 and 84,131.45

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Solution

The fourth proportional to 283,809.35, 425,715.72 and 84,131.45 is: 126,197.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,809.35 : 425,715.72 = 84,131.45 : x
  2. Step 2: Convert to fraction form
    283,809.35/425,715.72 = 84,131.45/x
  3. Step 3: Cross multiply
    283,809.35x = 425,715.72 × 84,131.45
  4. Step 4: Simplify right side
    283,809.35x = 35,816,078,682.82
  5. Step 5: Solve for x
    x = 35,816,078,682.82/283,809.35
  6. Step 6: Final answer
    x = 126,197.67

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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.