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Finding the Fourth Proportional to 239,653.89, 359,480.84 and 81,883.71

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Solution

The fourth proportional to 239,653.89, 359,480.84 and 81,883.71 is: 122,825.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,653.89 : 359,480.84 = 81,883.71 : x
  2. Step 2: Convert to fraction form
    239,653.89/359,480.84 = 81,883.71/x
  3. Step 3: Cross multiply
    239,653.89x = 359,480.84 × 81,883.71
  4. Step 4: Simplify right side
    239,653.89x = 29,435,624,443.70
  5. Step 5: Solve for x
    x = 29,435,624,443.70/239,653.89
  6. Step 6: Final answer
    x = 122,825.57

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1.5x scale

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.