Home / 260,114.70-390,172.05-197,129.10

Finding the Fourth Proportional to 260,114.70, 390,172.05 and 197,129.10

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Solution

The fourth proportional to 260,114.70, 390,172.05 and 197,129.10 is: 295,693.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,114.70 : 390,172.05 = 197,129.10 : x
  2. Step 2: Convert to fraction form
    260,114.70/390,172.05 = 197,129.10/x
  3. Step 3: Cross multiply
    260,114.70x = 390,172.05 × 197,129.10
  4. Step 4: Simplify right side
    260,114.70x = 76,914,265,061.66
  5. Step 5: Solve for x
    x = 76,914,265,061.66/260,114.70
  6. Step 6: Final answer
    x = 295,693.65

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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.