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Finding the Fourth Proportional to 351,187, 484,483.62 and 205,918.63

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Solution

The fourth proportional to 351,187, 484,483.62 and 205,918.63 is: 284,077.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,187 : 484,483.62 = 205,918.63 : x
  2. Step 2: Convert to fraction form
    351,187/484,483.62 = 205,918.63/x
  3. Step 3: Cross multiply
    351,187x = 484,483.62 × 205,918.63
  4. Step 4: Simplify right side
    351,187x = 99,764,203,287.84
  5. Step 5: Solve for x
    x = 99,764,203,287.84/351,187
  6. Step 6: Final answer
    x = 284,077.15

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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.