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Finding the Fourth Proportional to 250,674.79, 345,931.77 and 143,244.56

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Solution

The fourth proportional to 250,674.79, 345,931.77 and 143,244.56 is: 197,677.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,674.79 : 345,931.77 = 143,244.56 : x
  2. Step 2: Convert to fraction form
    250,674.79/345,931.77 = 143,244.56/x
  3. Step 3: Cross multiply
    250,674.79x = 345,931.77 × 143,244.56
  4. Step 4: Simplify right side
    250,674.79x = 49,552,844,183.67
  5. Step 5: Solve for x
    x = 49,552,844,183.67/250,674.79
  6. Step 6: Final answer
    x = 197,677.81

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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.