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Finding the Fourth Proportional to 260,961.87, 360,300.87 and 200,424.34

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Solution

The fourth proportional to 260,961.87, 360,300.87 and 200,424.34 is: 276,718.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,961.87 : 360,300.87 = 200,424.34 : x
  2. Step 2: Convert to fraction form
    260,961.87/360,300.87 = 200,424.34/x
  3. Step 3: Cross multiply
    260,961.87x = 360,300.87 × 200,424.34
  4. Step 4: Simplify right side
    260,961.87x = 72,213,064,071.18
  5. Step 5: Solve for x
    x = 72,213,064,071.18/260,961.87
  6. Step 6: Final answer
    x = 276,718.83

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1.5x scale

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.