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Finding the Fourth Proportional to 253,605.78, 350,340.51 and 202,551.48

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Solution

The fourth proportional to 253,605.78, 350,340.51 and 202,551.48 is: 279,812.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,605.78 : 350,340.51 = 202,551.48 : x
  2. Step 2: Convert to fraction form
    253,605.78/350,340.51 = 202,551.48/x
  3. Step 3: Cross multiply
    253,605.78x = 350,340.51 × 202,551.48
  4. Step 4: Simplify right side
    253,605.78x = 70,961,987,052.75
  5. Step 5: Solve for x
    x = 70,961,987,052.75/253,605.78
  6. Step 6: Final answer
    x = 279,812.19

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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.