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Finding the Fourth Proportional to 660,662.36, 990,993.18 and 187,351.64

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Solution

The fourth proportional to 660,662.36, 990,993.18 and 187,351.64 is: 281,027.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,662.36 : 990,993.18 = 187,351.64 : x
  2. Step 2: Convert to fraction form
    660,662.36/990,993.18 = 187,351.64/x
  3. Step 3: Cross multiply
    660,662.36x = 990,993.18 × 187,351.64
  4. Step 4: Simplify right side
    660,662.36x = 185,664,197,501.82
  5. Step 5: Solve for x
    x = 185,664,197,501.82/660,662.36
  6. Step 6: Final answer
    x = 281,027.36

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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.