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Finding the Fourth Proportional to 248,903.14, 343,485.70 and 135,725.89

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Solution

The fourth proportional to 248,903.14, 343,485.70 and 135,725.89 is: 187,301.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,903.14 : 343,485.70 = 135,725.89 : x
  2. Step 2: Convert to fraction form
    248,903.14/343,485.70 = 135,725.89/x
  3. Step 3: Cross multiply
    248,903.14x = 343,485.70 × 135,725.89
  4. Step 4: Simplify right side
    248,903.14x = 46,619,902,334.77
  5. Step 5: Solve for x
    x = 46,619,902,334.77/248,903.14
  6. Step 6: Final answer
    x = 187,301.38

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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.