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Finding the Fourth Proportional to 660,199.60, 990,366.53 and 227,860.79

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Solution

The fourth proportional to 660,199.60, 990,366.53 and 227,860.79 is: 341,814.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,199.60 : 990,366.53 = 227,860.79 : x
  2. Step 2: Convert to fraction form
    660,199.60/990,366.53 = 227,860.79/x
  3. Step 3: Cross multiply
    660,199.60x = 990,366.53 × 227,860.79
  4. Step 4: Simplify right side
    660,199.60x = 225,665,699,395.03
  5. Step 5: Solve for x
    x = 225,665,699,395.03/660,199.60
  6. Step 6: Final answer
    x = 341,814.36

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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.