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Finding the Fourth Proportional to 285,527.91, 428,069.57 and 141,334.25

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Solution

The fourth proportional to 285,527.91, 428,069.57 and 141,334.25 is: 211,891.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,527.91 : 428,069.57 = 141,334.25 : x
  2. Step 2: Convert to fraction form
    285,527.91/428,069.57 = 141,334.25/x
  3. Step 3: Cross multiply
    285,527.91x = 428,069.57 × 141,334.25
  4. Step 4: Simplify right side
    285,527.91x = 60,500,890,372.48
  5. Step 5: Solve for x
    x = 60,500,890,372.48/285,527.91
  6. Step 6: Final answer
    x = 211,891.34

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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.