Home / 319,261.26-440,657.30-191,912.25

Finding the Fourth Proportional to 319,261.26, 440,657.30 and 191,912.25

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Solution

The fourth proportional to 319,261.26, 440,657.30 and 191,912.25 is: 264,885.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,261.26 : 440,657.30 = 191,912.25 : x
  2. Step 2: Convert to fraction form
    319,261.26/440,657.30 = 191,912.25/x
  3. Step 3: Cross multiply
    319,261.26x = 440,657.30 × 191,912.25
  4. Step 4: Simplify right side
    319,261.26x = 84,567,534,401.71
  5. Step 5: Solve for x
    x = 84,567,534,401.71/319,261.26
  6. Step 6: Final answer
    x = 264,885.05

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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.