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Finding the Fourth Proportional to 253,344.30, 349,609.73 and 138,622.48

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Solution

The fourth proportional to 253,344.30, 349,609.73 and 138,622.48 is: 191,296.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,344.30 : 349,609.73 = 138,622.48 : x
  2. Step 2: Convert to fraction form
    253,344.30/349,609.73 = 138,622.48/x
  3. Step 3: Cross multiply
    253,344.30x = 349,609.73 × 138,622.48
  4. Step 4: Simplify right side
    253,344.30x = 48,463,767,804.73
  5. Step 5: Solve for x
    x = 48,463,767,804.73/253,344.30
  6. Step 6: Final answer
    x = 191,296.07

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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.