Home / 254,718.07-381,909.43-142,563.85

Finding the Fourth Proportional to 254,718.07, 381,909.43 and 142,563.85

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Solution

The fourth proportional to 254,718.07, 381,909.43 and 142,563.85 is: 213,751.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,718.07 : 381,909.43 = 142,563.85 : x
  2. Step 2: Convert to fraction form
    254,718.07/381,909.43 = 142,563.85/x
  3. Step 3: Cross multiply
    254,718.07x = 381,909.43 × 142,563.85
  4. Step 4: Simplify right side
    254,718.07x = 54,446,477,915.54
  5. Step 5: Solve for x
    x = 54,446,477,915.54/254,718.07
  6. Step 6: Final answer
    x = 213,751.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.