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Finding the Fourth Proportional to 190,243.64, 285,377.76 and 63,878.80

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Solution

The fourth proportional to 190,243.64, 285,377.76 and 63,878.80 is: 95,822.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,243.64 : 285,377.76 = 63,878.80 : x
  2. Step 2: Convert to fraction form
    190,243.64/285,377.76 = 63,878.80/x
  3. Step 3: Cross multiply
    190,243.64x = 285,377.76 × 63,878.80
  4. Step 4: Simplify right side
    190,243.64x = 18,229,588,855.49
  5. Step 5: Solve for x
    x = 18,229,588,855.49/190,243.64
  6. Step 6: Final answer
    x = 95,822.33

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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.