Home / 251,640.25-347,265.98-138,465.43

Finding the Fourth Proportional to 251,640.25, 347,265.98 and 138,465.43

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Solution

The fourth proportional to 251,640.25, 347,265.98 and 138,465.43 is: 191,083.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,640.25 : 347,265.98 = 138,465.43 : x
  2. Step 2: Convert to fraction form
    251,640.25/347,265.98 = 138,465.43/x
  3. Step 3: Cross multiply
    251,640.25x = 347,265.98 × 138,465.43
  4. Step 4: Simplify right side
    251,640.25x = 48,084,332,552.74
  5. Step 5: Solve for x
    x = 48,084,332,552.74/251,640.25
  6. Step 6: Final answer
    x = 191,083.63

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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.