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Finding the Fourth Proportional to 201,281.88, 277,795.26 and 129,869.64

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Solution

The fourth proportional to 201,281.88, 277,795.26 and 129,869.64 is: 179,237.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,281.88 : 277,795.26 = 129,869.64 : x
  2. Step 2: Convert to fraction form
    201,281.88/277,795.26 = 129,869.64/x
  3. Step 3: Cross multiply
    201,281.88x = 277,795.26 × 129,869.64
  4. Step 4: Simplify right side
    201,281.88x = 36,077,170,409.91
  5. Step 5: Solve for x
    x = 36,077,170,409.91/201,281.88
  6. Step 6: Final answer
    x = 179,237.05

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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.