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Finding the Fourth Proportional to 438,405.75, 604,999.94 and 237,201.75

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Solution

The fourth proportional to 438,405.75, 604,999.94 and 237,201.75 is: 327,338.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,405.75 : 604,999.94 = 237,201.75 : x
  2. Step 2: Convert to fraction form
    438,405.75/604,999.94 = 237,201.75/x
  3. Step 3: Cross multiply
    438,405.75x = 604,999.94 × 237,201.75
  4. Step 4: Simplify right side
    438,405.75x = 143,507,043,331.89
  5. Step 5: Solve for x
    x = 143,507,043,331.89/438,405.75
  6. Step 6: Final answer
    x = 327,338.42

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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.