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Finding the Fourth Proportional to 260,481.29, 390,706.81 and 100,525.93

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Solution

The fourth proportional to 260,481.29, 390,706.81 and 100,525.93 is: 150,783.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,481.29 : 390,706.81 = 100,525.93 : x
  2. Step 2: Convert to fraction form
    260,481.29/390,706.81 = 100,525.93/x
  3. Step 3: Cross multiply
    260,481.29x = 390,706.81 × 100,525.93
  4. Step 4: Simplify right side
    260,481.29x = 39,276,164,204.50
  5. Step 5: Solve for x
    x = 39,276,164,204.50/260,481.29
  6. Step 6: Final answer
    x = 150,783.06

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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.