Home / 260,829.12-390,888.72-110,880.96

Finding the Fourth Proportional to 260,829.12, 390,888.72 and 110,880.96

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Solution

The fourth proportional to 260,829.12, 390,888.72 and 110,880.96 is: 166,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,829.12 : 390,888.72 = 110,880.96 : x
  2. Step 2: Convert to fraction form
    260,829.12/390,888.72 = 110,880.96/x
  3. Step 3: Cross multiply
    260,829.12x = 390,888.72 × 110,880.96
  4. Step 4: Simplify right side
    260,829.12x = 43,342,116,526.77
  5. Step 5: Solve for x
    x = 43,342,116,526.77/260,829.12
  6. Step 6: Final answer
    x = 166,170.54

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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.