Home / 240,465.78-331,949.07-143,703.77

Finding the Fourth Proportional to 240,465.78, 331,949.07 and 143,703.77

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Solution

The fourth proportional to 240,465.78, 331,949.07 and 143,703.77 is: 198,374.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,465.78 : 331,949.07 = 143,703.77 : x
  2. Step 2: Convert to fraction form
    240,465.78/331,949.07 = 143,703.77/x
  3. Step 3: Cross multiply
    240,465.78x = 331,949.07 × 143,703.77
  4. Step 4: Simplify right side
    240,465.78x = 47,702,331,147.25
  5. Step 5: Solve for x
    x = 47,702,331,147.25/240,465.78
  6. Step 6: Final answer
    x = 198,374.72

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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.