Home / 319,286.56-440,157.64-251,185.26

Finding the Fourth Proportional to 319,286.56, 440,157.64 and 251,185.26

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Solution

The fourth proportional to 319,286.56, 440,157.64 and 251,185.26 is: 346,275.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,286.56 : 440,157.64 = 251,185.26 : x
  2. Step 2: Convert to fraction form
    319,286.56/440,157.64 = 251,185.26/x
  3. Step 3: Cross multiply
    319,286.56x = 440,157.64 × 251,185.26
  4. Step 4: Simplify right side
    319,286.56x = 110,561,111,244.39
  5. Step 5: Solve for x
    x = 110,561,111,244.39/319,286.56
  6. Step 6: Final answer
    x = 346,275.49

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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.