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Finding the Fourth Proportional to 248,317.44, 342,667.44 and 135,139.92

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Solution

The fourth proportional to 248,317.44, 342,667.44 and 135,139.92 is: 186,487.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,317.44 : 342,667.44 = 135,139.92 : x
  2. Step 2: Convert to fraction form
    248,317.44/342,667.44 = 135,139.92/x
  3. Step 3: Cross multiply
    248,317.44x = 342,667.44 × 135,139.92
  4. Step 4: Simplify right side
    248,317.44x = 46,308,050,428.20
  5. Step 5: Solve for x
    x = 46,308,050,428.20/248,317.44
  6. Step 6: Final answer
    x = 186,487.31

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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.