Home / 260,259.90-390,396.33-73,270.14

Finding the Fourth Proportional to 260,259.90, 390,396.33 and 73,270.14

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Solution

The fourth proportional to 260,259.90, 390,396.33 and 73,270.14 is: 109,907.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,259.90 : 390,396.33 = 73,270.14 : x
  2. Step 2: Convert to fraction form
    260,259.90/390,396.33 = 73,270.14/x
  3. Step 3: Cross multiply
    260,259.90x = 390,396.33 × 73,270.14
  4. Step 4: Simplify right side
    260,259.90x = 28,604,393,754.59
  5. Step 5: Solve for x
    x = 28,604,393,754.59/260,259.90
  6. Step 6: Final answer
    x = 109,907.03

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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.