Home / 438,249.15-657,398.16-122,730.66

Finding the Fourth Proportional to 438,249.15, 657,398.16 and 122,730.66

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Solution

The fourth proportional to 438,249.15, 657,398.16 and 122,730.66 is: 184,102.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,249.15 : 657,398.16 = 122,730.66 : x
  2. Step 2: Convert to fraction form
    438,249.15/657,398.16 = 122,730.66/x
  3. Step 3: Cross multiply
    438,249.15x = 657,398.16 × 122,730.66
  4. Step 4: Simplify right side
    438,249.15x = 80,682,910,059.59
  5. Step 5: Solve for x
    x = 80,682,910,059.59/438,249.15
  6. Step 6: Final answer
    x = 184,102.83

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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.