Home / 259,720.20-389,580.30-141,622.20

Finding the Fourth Proportional to 259,720.20, 389,580.30 and 141,622.20

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Solution

The fourth proportional to 259,720.20, 389,580.30 and 141,622.20 is: 212,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,720.20 : 389,580.30 = 141,622.20 : x
  2. Step 2: Convert to fraction form
    259,720.20/389,580.30 = 141,622.20/x
  3. Step 3: Cross multiply
    259,720.20x = 389,580.30 × 141,622.20
  4. Step 4: Simplify right side
    259,720.20x = 55,173,219,162.66
  5. Step 5: Solve for x
    x = 55,173,219,162.66/259,720.20
  6. Step 6: Final answer
    x = 212,433.30

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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.