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Finding the Fourth Proportional to 283,489.54, 425,020.50 and 171,143.05

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Solution

The fourth proportional to 283,489.54, 425,020.50 and 171,143.05 is: 256,585.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,489.54 : 425,020.50 = 171,143.05 : x
  2. Step 2: Convert to fraction form
    283,489.54/425,020.50 = 171,143.05/x
  3. Step 3: Cross multiply
    283,489.54x = 425,020.50 × 171,143.05
  4. Step 4: Simplify right side
    283,489.54x = 72,739,304,682.53
  5. Step 5: Solve for x
    x = 72,739,304,682.53/283,489.54
  6. Step 6: Final answer
    x = 256,585.50

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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.