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Finding the Fourth Proportional to 250,625.75, 345,881.85 and 143,193.47

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Solution

The fourth proportional to 250,625.75, 345,881.85 and 143,193.47 is: 197,617.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,625.75 : 345,881.85 = 143,193.47 : x
  2. Step 2: Convert to fraction form
    250,625.75/345,881.85 = 143,193.47/x
  3. Step 3: Cross multiply
    250,625.75x = 345,881.85 × 143,193.47
  4. Step 4: Simplify right side
    250,625.75x = 49,528,020,582.11
  5. Step 5: Solve for x
    x = 49,528,020,582.11/250,625.75
  6. Step 6: Final answer
    x = 197,617.45

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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.