Home / 661,231.93-991,941.30-211,847.68

Finding the Fourth Proportional to 661,231.93, 991,941.30 and 211,847.68

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Solution

The fourth proportional to 661,231.93, 991,941.30 and 211,847.68 is: 317,801.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,231.93 : 991,941.30 = 211,847.68 : x
  2. Step 2: Convert to fraction form
    661,231.93/991,941.30 = 211,847.68/x
  3. Step 3: Cross multiply
    661,231.93x = 991,941.30 × 211,847.68
  4. Step 4: Simplify right side
    661,231.93x = 210,140,463,101.18
  5. Step 5: Solve for x
    x = 210,140,463,101.18/661,231.93
  6. Step 6: Final answer
    x = 317,801.45

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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.