Home / 252,261.89-378,485.12-117,390.31

Finding the Fourth Proportional to 252,261.89, 378,485.12 and 117,390.31

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Solution

The fourth proportional to 252,261.89, 378,485.12 and 117,390.31 is: 176,128.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,261.89 : 378,485.12 = 117,390.31 : x
  2. Step 2: Convert to fraction form
    252,261.89/378,485.12 = 117,390.31/x
  3. Step 3: Cross multiply
    252,261.89x = 378,485.12 × 117,390.31
  4. Step 4: Simplify right side
    252,261.89x = 44,430,485,567.19
  5. Step 5: Solve for x
    x = 44,430,485,567.19/252,261.89
  6. Step 6: Final answer
    x = 176,128.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.