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Finding the Fourth Proportional to 190,642.26, 285,963.40 and 50,400.90

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Solution

The fourth proportional to 190,642.26, 285,963.40 and 50,400.90 is: 75,601.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,642.26 : 285,963.40 = 50,400.90 : x
  2. Step 2: Convert to fraction form
    190,642.26/285,963.40 = 50,400.90/x
  3. Step 3: Cross multiply
    190,642.26x = 285,963.40 × 50,400.90
  4. Step 4: Simplify right side
    190,642.26x = 14,412,812,727.06
  5. Step 5: Solve for x
    x = 14,412,812,727.06/190,642.26
  6. Step 6: Final answer
    x = 75,601.35

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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.