Home / 254,505.75-381,590.15-121,406.55

Finding the Fourth Proportional to 254,505.75, 381,590.15 and 121,406.55

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Solution

The fourth proportional to 254,505.75, 381,590.15 and 121,406.55 is: 182,029.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,505.75 : 381,590.15 = 121,406.55 : x
  2. Step 2: Convert to fraction form
    254,505.75/381,590.15 = 121,406.55/x
  3. Step 3: Cross multiply
    254,505.75x = 381,590.15 × 121,406.55
  4. Step 4: Simplify right side
    254,505.75x = 46,327,543,018.45
  5. Step 5: Solve for x
    x = 46,327,543,018.45/254,505.75
  6. Step 6: Final answer
    x = 182,029.46

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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.