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Finding the Fourth Proportional to 260,566.92, 390,924.32 and 134,299.67

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Solution

The fourth proportional to 260,566.92, 390,924.32 and 134,299.67 is: 201,487.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,566.92 : 390,924.32 = 134,299.67 : x
  2. Step 2: Convert to fraction form
    260,566.92/390,924.32 = 134,299.67/x
  3. Step 3: Cross multiply
    260,566.92x = 390,924.32 × 134,299.67
  4. Step 4: Simplify right side
    260,566.92x = 52,501,004,544.85
  5. Step 5: Solve for x
    x = 52,501,004,544.85/260,566.92
  6. Step 6: Final answer
    x = 201,487.60

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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.