Home / 319,824.93-440,832.80-226,722.40

Finding the Fourth Proportional to 319,824.93, 440,832.80 and 226,722.40

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Solution

The fourth proportional to 319,824.93, 440,832.80 and 226,722.40 is: 312,504.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,824.93 : 440,832.80 = 226,722.40 : x
  2. Step 2: Convert to fraction form
    319,824.93/440,832.80 = 226,722.40/x
  3. Step 3: Cross multiply
    319,824.93x = 440,832.80 × 226,722.40
  4. Step 4: Simplify right side
    319,824.93x = 99,946,670,414.72
  5. Step 5: Solve for x
    x = 99,946,670,414.72/319,824.93
  6. Step 6: Final answer
    x = 312,504.31

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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.