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Finding the Fourth Proportional to 405,336.67, 559,287.62 and 254,365.63

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Solution

The fourth proportional to 405,336.67, 559,287.62 and 254,365.63 is: 350,976.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,336.67 : 559,287.62 = 254,365.63 : x
  2. Step 2: Convert to fraction form
    405,336.67/559,287.62 = 254,365.63/x
  3. Step 3: Cross multiply
    405,336.67x = 559,287.62 × 254,365.63
  4. Step 4: Simplify right side
    405,336.67x = 142,263,546,096.33
  5. Step 5: Solve for x
    x = 142,263,546,096.33/405,336.67
  6. Step 6: Final answer
    x = 350,976.26

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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.