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Finding the Fourth Proportional to 253,561, 349,914.18 and 140,391.04

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Solution

The fourth proportional to 253,561, 349,914.18 and 140,391.04 is: 193,739.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,561 : 349,914.18 = 140,391.04 : x
  2. Step 2: Convert to fraction form
    253,561/349,914.18 = 140,391.04/x
  3. Step 3: Cross multiply
    253,561x = 349,914.18 × 140,391.04
  4. Step 4: Simplify right side
    253,561x = 49,124,815,640.95
  5. Step 5: Solve for x
    x = 49,124,815,640.95/253,561
  6. Step 6: Final answer
    x = 193,739.64

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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.