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Finding the Fourth Proportional to 201,079.58, 277,496.64 and 115,052.72

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Solution

The fourth proportional to 201,079.58, 277,496.64 and 115,052.72 is: 158,776.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,079.58 : 277,496.64 = 115,052.72 : x
  2. Step 2: Convert to fraction form
    201,079.58/277,496.64 = 115,052.72/x
  3. Step 3: Cross multiply
    201,079.58x = 277,496.64 × 115,052.72
  4. Step 4: Simplify right side
    201,079.58x = 31,926,741,835.38
  5. Step 5: Solve for x
    x = 31,926,741,835.38/201,079.58
  6. Step 6: Final answer
    x = 158,776.65

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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.