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Finding the Fourth Proportional to 254,520.51, 381,745.90 and 140,878.52

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Solution

The fourth proportional to 254,520.51, 381,745.90 and 140,878.52 is: 211,298.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,520.51 : 381,745.90 = 140,878.52 : x
  2. Step 2: Convert to fraction form
    254,520.51/381,745.90 = 140,878.52/x
  3. Step 3: Cross multiply
    254,520.51x = 381,745.90 × 140,878.52
  4. Step 4: Simplify right side
    254,520.51x = 53,779,797,408.07
  5. Step 5: Solve for x
    x = 53,779,797,408.07/254,520.51
  6. Step 6: Final answer
    x = 211,298.48

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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.