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Finding the Fourth Proportional to 289,302.92, 399,190.32 and 181,796.72

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Solution

The fourth proportional to 289,302.92, 399,190.32 and 181,796.72 is: 250,849.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,302.92 : 399,190.32 = 181,796.72 : x
  2. Step 2: Convert to fraction form
    289,302.92/399,190.32 = 181,796.72/x
  3. Step 3: Cross multiply
    289,302.92x = 399,190.32 × 181,796.72
  4. Step 4: Simplify right side
    289,302.92x = 72,571,490,831.75
  5. Step 5: Solve for x
    x = 72,571,490,831.75/289,302.92
  6. Step 6: Final answer
    x = 250,849.49

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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.