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Finding the Fourth Proportional to 190,489.76, 285,706.56 and 50,258.24

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Solution

The fourth proportional to 190,489.76, 285,706.56 and 50,258.24 is: 75,379.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,489.76 : 285,706.56 = 50,258.24 : x
  2. Step 2: Convert to fraction form
    190,489.76/285,706.56 = 50,258.24/x
  3. Step 3: Cross multiply
    190,489.76x = 285,706.56 × 50,258.24
  4. Step 4: Simplify right side
    190,489.76x = 14,359,108,862.05
  5. Step 5: Solve for x
    x = 14,359,108,862.05/190,489.76
  6. Step 6: Final answer
    x = 75,379.95

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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.