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Finding the Fourth Proportional to 243,835.65, 336,485.39 and 136,403.37

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Solution

The fourth proportional to 243,835.65, 336,485.39 and 136,403.37 is: 188,232.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,835.65 : 336,485.39 = 136,403.37 : x
  2. Step 2: Convert to fraction form
    243,835.65/336,485.39 = 136,403.37/x
  3. Step 3: Cross multiply
    243,835.65x = 336,485.39 × 136,403.37
  4. Step 4: Simplify right side
    243,835.65x = 45,897,740,469.75
  5. Step 5: Solve for x
    x = 45,897,740,469.75/243,835.65
  6. Step 6: Final answer
    x = 188,232.28

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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.