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Finding the Fourth Proportional to 355,224.54, 490,208.22 and 202,269

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Solution

The fourth proportional to 355,224.54, 490,208.22 and 202,269 is: 279,130.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,224.54 : 490,208.22 = 202,269 : x
  2. Step 2: Convert to fraction form
    355,224.54/490,208.22 = 202,269/x
  3. Step 3: Cross multiply
    355,224.54x = 490,208.22 × 202,269
  4. Step 4: Simplify right side
    355,224.54x = 99,153,926,451.18
  5. Step 5: Solve for x
    x = 99,153,926,451.18/355,224.54
  6. Step 6: Final answer
    x = 279,130.28

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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.