Home / 307,585.20-461,442.60-130,000.80

Finding the Fourth Proportional to 307,585.20, 461,442.60 and 130,000.80

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Solution

The fourth proportional to 307,585.20, 461,442.60 and 130,000.80 is: 195,028.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,585.20 : 461,442.60 = 130,000.80 : x
  2. Step 2: Convert to fraction form
    307,585.20/461,442.60 = 130,000.80/x
  3. Step 3: Cross multiply
    307,585.20x = 461,442.60 × 130,000.80
  4. Step 4: Simplify right side
    307,585.20x = 59,987,907,154.08
  5. Step 5: Solve for x
    x = 59,987,907,154.08/307,585.20
  6. Step 6: Final answer
    x = 195,028.59

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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.