Home / 320,221.62-441,966.78-211,134.06

Finding the Fourth Proportional to 320,221.62, 441,966.78 and 211,134.06

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Solution

The fourth proportional to 320,221.62, 441,966.78 and 211,134.06 is: 291,405.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,221.62 : 441,966.78 = 211,134.06 : x
  2. Step 2: Convert to fraction form
    320,221.62/441,966.78 = 211,134.06/x
  3. Step 3: Cross multiply
    320,221.62x = 441,966.78 × 211,134.06
  4. Step 4: Simplify right side
    320,221.62x = 93,314,240,646.53
  5. Step 5: Solve for x
    x = 93,314,240,646.53/320,221.62
  6. Step 6: Final answer
    x = 291,405.19

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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.