Home / 265,508.36-398,099.04-130,400.60

Finding the Fourth Proportional to 265,508.36, 398,099.04 and 130,400.60

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Solution

The fourth proportional to 265,508.36, 398,099.04 and 130,400.60 is: 195,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,508.36 : 398,099.04 = 130,400.60 : x
  2. Step 2: Convert to fraction form
    265,508.36/398,099.04 = 130,400.60/x
  3. Step 3: Cross multiply
    265,508.36x = 398,099.04 × 130,400.60
  4. Step 4: Simplify right side
    265,508.36x = 51,912,353,675.42
  5. Step 5: Solve for x
    x = 51,912,353,675.42/265,508.36
  6. Step 6: Final answer
    x = 195,520.60

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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.