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Finding the Fourth Proportional to 366,220.16, 505,431.44 and 205,136.64

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Solution

The fourth proportional to 366,220.16, 505,431.44 and 205,136.64 is: 283,115.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,220.16 : 505,431.44 = 205,136.64 : x
  2. Step 2: Convert to fraction form
    366,220.16/505,431.44 = 205,136.64/x
  3. Step 3: Cross multiply
    366,220.16x = 505,431.44 × 205,136.64
  4. Step 4: Simplify right side
    366,220.16x = 103,682,507,351.96
  5. Step 5: Solve for x
    x = 103,682,507,351.96/366,220.16
  6. Step 6: Final answer
    x = 283,115.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.