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Finding the Fourth Proportional to 355,617.33, 490,760.46 and 202,652.25

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Solution

The fourth proportional to 355,617.33, 490,760.46 and 202,652.25 is: 279,664.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,617.33 : 490,760.46 = 202,652.25 : x
  2. Step 2: Convert to fraction form
    355,617.33/490,760.46 = 202,652.25/x
  3. Step 3: Cross multiply
    355,617.33x = 490,760.46 × 202,652.25
  4. Step 4: Simplify right side
    355,617.33x = 99,453,711,430.04
  5. Step 5: Solve for x
    x = 99,453,711,430.04/355,617.33
  6. Step 6: Final answer
    x = 279,664.97

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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.