Home / 254,531.85-381,880.82-121,394.81

Finding the Fourth Proportional to 254,531.85, 381,880.82 and 121,394.81

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Solution

The fourth proportional to 254,531.85, 381,880.82 and 121,394.81 is: 182,131.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,531.85 : 381,880.82 = 121,394.81 : x
  2. Step 2: Convert to fraction form
    254,531.85/381,880.82 = 121,394.81/x
  3. Step 3: Cross multiply
    254,531.85x = 381,880.82 × 121,394.81
  4. Step 4: Simplify right side
    254,531.85x = 46,358,347,070.17
  5. Step 5: Solve for x
    x = 46,358,347,070.17/254,531.85
  6. Step 6: Final answer
    x = 182,131.81

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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.