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Finding the Fourth Proportional to 319,496.58, 440,709.90 and 204,736.58

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Solution

The fourth proportional to 319,496.58, 440,709.90 and 204,736.58 is: 282,411.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,496.58 : 440,709.90 = 204,736.58 : x
  2. Step 2: Convert to fraction form
    319,496.58/440,709.90 = 204,736.58/x
  3. Step 3: Cross multiply
    319,496.58x = 440,709.90 × 204,736.58
  4. Step 4: Simplify right side
    319,496.58x = 90,229,437,698.14
  5. Step 5: Solve for x
    x = 90,229,437,698.14/319,496.58
  6. Step 6: Final answer
    x = 282,411.28

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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.