Home / 240,531.81-331,928.93-133,101.78

Finding the Fourth Proportional to 240,531.81, 331,928.93 and 133,101.78

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Solution

The fourth proportional to 240,531.81, 331,928.93 and 133,101.78 is: 183,677.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,531.81 : 331,928.93 = 133,101.78 : x
  2. Step 2: Convert to fraction form
    240,531.81/331,928.93 = 133,101.78/x
  3. Step 3: Cross multiply
    240,531.81x = 331,928.93 × 133,101.78
  4. Step 4: Simplify right side
    240,531.81x = 44,180,331,749.25
  5. Step 5: Solve for x
    x = 44,180,331,749.25/240,531.81
  6. Step 6: Final answer
    x = 183,677.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.