Home / 307,512.20-461,333.10-129,927.80

Finding the Fourth Proportional to 307,512.20, 461,333.10 and 129,927.80

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Solution

The fourth proportional to 307,512.20, 461,333.10 and 129,927.80 is: 194,919.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,512.20 : 461,333.10 = 129,927.80 : x
  2. Step 2: Convert to fraction form
    307,512.20/461,333.10 = 129,927.80/x
  3. Step 3: Cross multiply
    307,512.20x = 461,333.10 × 129,927.80
  4. Step 4: Simplify right side
    307,512.20x = 59,939,994,750.18
  5. Step 5: Solve for x
    x = 59,939,994,750.18/307,512.20
  6. Step 6: Final answer
    x = 194,919.08

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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.