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Finding the Fourth Proportional to 190,490.76, 285,708.06 and 50,259.24

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Solution

The fourth proportional to 190,490.76, 285,708.06 and 50,259.24 is: 75,381.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,490.76 : 285,708.06 = 50,259.24 : x
  2. Step 2: Convert to fraction form
    190,490.76/285,708.06 = 50,259.24/x
  3. Step 3: Cross multiply
    190,490.76x = 285,708.06 × 50,259.24
  4. Step 4: Simplify right side
    190,490.76x = 14,359,469,957.47
  5. Step 5: Solve for x
    x = 14,359,469,957.47/190,490.76
  6. Step 6: Final answer
    x = 75,381.45

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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.