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Finding the Fourth Proportional to 260,396.62, 390,526.58 and 110,559.78

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Solution

The fourth proportional to 260,396.62, 390,526.58 and 110,559.78 is: 165,810.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,396.62 : 390,526.58 = 110,559.78 : x
  2. Step 2: Convert to fraction form
    260,396.62/390,526.58 = 110,559.78/x
  3. Step 3: Cross multiply
    260,396.62x = 390,526.58 × 110,559.78
  4. Step 4: Simplify right side
    260,396.62x = 43,176,532,768.95
  5. Step 5: Solve for x
    x = 43,176,532,768.95/260,396.62
  6. Step 6: Final answer
    x = 165,810.65

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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.