Home / 320,225.12-441,971.61-211,137.56

Finding the Fourth Proportional to 320,225.12, 441,971.61 and 211,137.56

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Solution

The fourth proportional to 320,225.12, 441,971.61 and 211,137.56 is: 291,410.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,225.12 : 441,971.61 = 211,137.56 : x
  2. Step 2: Convert to fraction form
    320,225.12/441,971.61 = 211,137.56/x
  3. Step 3: Cross multiply
    320,225.12x = 441,971.61 × 211,137.56
  4. Step 4: Simplify right side
    320,225.12x = 93,316,807,324.67
  5. Step 5: Solve for x
    x = 93,316,807,324.67/320,225.12
  6. Step 6: Final answer
    x = 291,410.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.