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Finding the Fourth Proportional to 190,291.72, 285,477.66 and 71,960.44

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Solution

The fourth proportional to 190,291.72, 285,477.66 and 71,960.44 is: 107,955.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,291.72 : 285,477.66 = 71,960.44 : x
  2. Step 2: Convert to fraction form
    190,291.72/285,477.66 = 71,960.44/x
  3. Step 3: Cross multiply
    190,291.72x = 285,477.66 × 71,960.44
  4. Step 4: Simplify right side
    190,291.72x = 20,543,098,023.77
  5. Step 5: Solve for x
    x = 20,543,098,023.77/190,291.72
  6. Step 6: Final answer
    x = 107,955.82

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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.