Home / 265,012.21-397,645.85-131,904.10

Finding the Fourth Proportional to 265,012.21, 397,645.85 and 131,904.10

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Solution

The fourth proportional to 265,012.21, 397,645.85 and 131,904.10 is: 197,919.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,012.21 : 397,645.85 = 131,904.10 : x
  2. Step 2: Convert to fraction form
    265,012.21/397,645.85 = 131,904.10/x
  3. Step 3: Cross multiply
    265,012.21x = 397,645.85 × 131,904.10
  4. Step 4: Simplify right side
    265,012.21x = 52,451,117,962.99
  5. Step 5: Solve for x
    x = 52,451,117,962.99/265,012.21
  6. Step 6: Final answer
    x = 197,919.63

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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.