Home / 307,638.20-461,522.10-130,053.80

Finding the Fourth Proportional to 307,638.20, 461,522.10 and 130,053.80

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Solution

The fourth proportional to 307,638.20, 461,522.10 and 130,053.80 is: 195,108.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,638.20 : 461,522.10 = 130,053.80 : x
  2. Step 2: Convert to fraction form
    307,638.20/461,522.10 = 130,053.80/x
  3. Step 3: Cross multiply
    307,638.20x = 461,522.10 × 130,053.80
  4. Step 4: Simplify right side
    307,638.20x = 60,022,702,888.98
  5. Step 5: Solve for x
    x = 60,022,702,888.98/307,638.20
  6. Step 6: Final answer
    x = 195,108.09

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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.