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Finding the Fourth Proportional to 253,350.84, 349,618.77 and 138,629.04

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Solution

The fourth proportional to 253,350.84, 349,618.77 and 138,629.04 is: 191,305.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,350.84 : 349,618.77 = 138,629.04 : x
  2. Step 2: Convert to fraction form
    253,350.84/349,618.77 = 138,629.04/x
  3. Step 3: Cross multiply
    253,350.84x = 349,618.77 × 138,629.04
  4. Step 4: Simplify right side
    253,350.84x = 48,467,314,451.08
  5. Step 5: Solve for x
    x = 48,467,314,451.08/253,350.84
  6. Step 6: Final answer
    x = 191,305.13

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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.