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Finding the Fourth Proportional to 253,670.86, 350,052.25 and 138,943.57

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Solution

The fourth proportional to 253,670.86, 350,052.25 and 138,943.57 is: 191,734.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,670.86 : 350,052.25 = 138,943.57 : x
  2. Step 2: Convert to fraction form
    253,670.86/350,052.25 = 138,943.57/x
  3. Step 3: Cross multiply
    253,670.86x = 350,052.25 × 138,943.57
  4. Step 4: Simplify right side
    253,670.86x = 48,637,509,301.53
  5. Step 5: Solve for x
    x = 48,637,509,301.53/253,670.86
  6. Step 6: Final answer
    x = 191,734.71

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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.