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Finding the Fourth Proportional to 190,305.70, 285,369.15 and 110,366.39

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Solution

The fourth proportional to 190,305.70, 285,369.15 and 110,366.39 is: 165,497.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,305.70 : 285,369.15 = 110,366.39 : x
  2. Step 2: Convert to fraction form
    190,305.70/285,369.15 = 110,366.39/x
  3. Step 3: Cross multiply
    190,305.70x = 285,369.15 × 110,366.39
  4. Step 4: Simplify right side
    190,305.70x = 31,495,161,476.02
  5. Step 5: Solve for x
    x = 31,495,161,476.02/190,305.70
  6. Step 6: Final answer
    x = 165,497.73

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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.