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Finding the Fourth Proportional to 338,357.09, 507,485.52 and 205,201.60

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Solution

The fourth proportional to 338,357.09, 507,485.52 and 205,201.60 is: 307,772.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,357.09 : 507,485.52 = 205,201.60 : x
  2. Step 2: Convert to fraction form
    338,357.09/507,485.52 = 205,201.60/x
  3. Step 3: Cross multiply
    338,357.09x = 507,485.52 × 205,201.60
  4. Step 4: Simplify right side
    338,357.09x = 104,136,839,412.12
  5. Step 5: Solve for x
    x = 104,136,839,412.12/338,357.09
  6. Step 6: Final answer
    x = 307,772.00

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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.