Home / 260,160.85-390,241.32-73,172.35

Finding the Fourth Proportional to 260,160.85, 390,241.32 and 73,172.35

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Solution

The fourth proportional to 260,160.85, 390,241.32 and 73,172.35 is: 109,758.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,160.85 : 390,241.32 = 73,172.35 : x
  2. Step 2: Convert to fraction form
    260,160.85/390,241.32 = 73,172.35/x
  3. Step 3: Cross multiply
    260,160.85x = 390,241.32 × 73,172.35
  4. Step 4: Simplify right side
    260,160.85x = 28,554,874,451.50
  5. Step 5: Solve for x
    x = 28,554,874,451.50/260,160.85
  6. Step 6: Final answer
    x = 109,758.54

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1.5x scale

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.