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Finding the Fourth Proportional to 283,548.70, 425,323.05 and 143,289.10

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Solution

The fourth proportional to 283,548.70, 425,323.05 and 143,289.10 is: 214,933.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,548.70 : 425,323.05 = 143,289.10 : x
  2. Step 2: Convert to fraction form
    283,548.70/425,323.05 = 143,289.10/x
  3. Step 3: Cross multiply
    283,548.70x = 425,323.05 × 143,289.10
  4. Step 4: Simplify right side
    283,548.70x = 60,944,157,043.76
  5. Step 5: Solve for x
    x = 60,944,157,043.76/283,548.70
  6. Step 6: Final answer
    x = 214,933.65

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Similar ratio
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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.