Home / 307,579.20-461,433.60-129,994.80

Finding the Fourth Proportional to 307,579.20, 461,433.60 and 129,994.80

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Solution

The fourth proportional to 307,579.20, 461,433.60 and 129,994.80 is: 195,019.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,579.20 : 461,433.60 = 129,994.80 : x
  2. Step 2: Convert to fraction form
    307,579.20/461,433.60 = 129,994.80/x
  3. Step 3: Cross multiply
    307,579.20x = 461,433.60 × 129,994.80
  4. Step 4: Simplify right side
    307,579.20x = 59,983,968,545.28
  5. Step 5: Solve for x
    x = 59,983,968,545.28/307,579.20
  6. Step 6: Final answer
    x = 195,019.59

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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.