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Finding the Fourth Proportional to 190,291.60, 285,477.47 and 71,960.32

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Solution

The fourth proportional to 190,291.60, 285,477.47 and 71,960.32 is: 107,955.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,291.60 : 285,477.47 = 71,960.32 : x
  2. Step 2: Convert to fraction form
    190,291.60/285,477.47 = 71,960.32/x
  3. Step 3: Cross multiply
    190,291.60x = 285,477.47 × 71,960.32
  4. Step 4: Simplify right side
    190,291.60x = 20,543,048,846.50
  5. Step 5: Solve for x
    x = 20,543,048,846.50/190,291.60
  6. Step 6: Final answer
    x = 107,955.63

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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.