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Finding the Fourth Proportional to 201,406.12, 277,940.08 and 115,392.93

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Solution

The fourth proportional to 201,406.12, 277,940.08 and 115,392.93 is: 159,242.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,406.12 : 277,940.08 = 115,392.93 : x
  2. Step 2: Convert to fraction form
    201,406.12/277,940.08 = 115,392.93/x
  3. Step 3: Cross multiply
    201,406.12x = 277,940.08 × 115,392.93
  4. Step 4: Simplify right side
    201,406.12x = 32,072,320,195.63
  5. Step 5: Solve for x
    x = 32,072,320,195.63/201,406.12
  6. Step 6: Final answer
    x = 159,242.03

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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.