Home / 331,329.78-457,223.09-202,483.82

Finding the Fourth Proportional to 331,329.78, 457,223.09 and 202,483.82

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Solution

The fourth proportional to 331,329.78, 457,223.09 and 202,483.82 is: 279,420.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,329.78 : 457,223.09 = 202,483.82 : x
  2. Step 2: Convert to fraction form
    331,329.78/457,223.09 = 202,483.82/x
  3. Step 3: Cross multiply
    331,329.78x = 457,223.09 × 202,483.82
  4. Step 4: Simplify right side
    331,329.78x = 92,580,274,556.87
  5. Step 5: Solve for x
    x = 92,580,274,556.87/331,329.78
  6. Step 6: Final answer
    x = 279,420.32

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1.5x scale

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.