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Finding the Fourth Proportional to 240,718.60, 360,980.70 and 82,865.80

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Solution

The fourth proportional to 240,718.60, 360,980.70 and 82,865.80 is: 124,265.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,718.60 : 360,980.70 = 82,865.80 : x
  2. Step 2: Convert to fraction form
    240,718.60/360,980.70 = 82,865.80/x
  3. Step 3: Cross multiply
    240,718.60x = 360,980.70 × 82,865.80
  4. Step 4: Simplify right side
    240,718.60x = 29,912,954,490.06
  5. Step 5: Solve for x
    x = 29,912,954,490.06/240,718.60
  6. Step 6: Final answer
    x = 124,265.24

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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.