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Finding the Fourth Proportional to 253,578.65, 349,513.36 and 202,427.42

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Solution

The fourth proportional to 253,578.65, 349,513.36 and 202,427.42 is: 279,010.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,578.65 : 349,513.36 = 202,427.42 : x
  2. Step 2: Convert to fraction form
    253,578.65/349,513.36 = 202,427.42/x
  3. Step 3: Cross multiply
    253,578.65x = 349,513.36 × 202,427.42
  4. Step 4: Simplify right side
    253,578.65x = 70,751,085,466.70
  5. Step 5: Solve for x
    x = 70,751,085,466.70/253,578.65
  6. Step 6: Final answer
    x = 279,010.42

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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.