Home / 319,147.89-440,418.63-175,921.26

Finding the Fourth Proportional to 319,147.89, 440,418.63 and 175,921.26

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Solution

The fourth proportional to 319,147.89, 440,418.63 and 175,921.26 is: 242,768.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,147.89 : 440,418.63 = 175,921.26 : x
  2. Step 2: Convert to fraction form
    319,147.89/440,418.63 = 175,921.26/x
  3. Step 3: Cross multiply
    319,147.89x = 440,418.63 × 175,921.26
  4. Step 4: Simplify right side
    319,147.89x = 77,479,000,317.07
  5. Step 5: Solve for x
    x = 77,479,000,317.07/319,147.89
  6. Step 6: Final answer
    x = 242,768.33

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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.