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Finding the Fourth Proportional to 283,489.32, 425,496.42 and 143,346.36

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Solution

The fourth proportional to 283,489.32, 425,496.42 and 143,346.36 is: 215,152.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,489.32 : 425,496.42 = 143,346.36 : x
  2. Step 2: Convert to fraction form
    283,489.32/425,496.42 = 143,346.36/x
  3. Step 3: Cross multiply
    283,489.32x = 425,496.42 × 143,346.36
  4. Step 4: Simplify right side
    283,489.32x = 60,993,363,000.03
  5. Step 5: Solve for x
    x = 60,993,363,000.03/283,489.32
  6. Step 6: Final answer
    x = 215,152.24

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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.