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Finding the Fourth Proportional to 253,747.31, 350,154.88 and 139,025.79

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Solution

The fourth proportional to 253,747.31, 350,154.88 and 139,025.79 is: 191,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,747.31 : 350,154.88 = 139,025.79 : x
  2. Step 2: Convert to fraction form
    253,747.31/350,154.88 = 139,025.79/x
  3. Step 3: Cross multiply
    253,747.31x = 350,154.88 × 139,025.79
  4. Step 4: Simplify right side
    253,747.31x = 48,680,558,466.79
  5. Step 5: Solve for x
    x = 48,680,558,466.79/253,747.31
  6. Step 6: Final answer
    x = 191,846.60

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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.