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Finding the Fourth Proportional to 201,012.62, 301,527.12 and 51,256.79

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Solution

The fourth proportional to 201,012.62, 301,527.12 and 51,256.79 is: 76,887.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,012.62 : 301,527.12 = 51,256.79 : x
  2. Step 2: Convert to fraction form
    201,012.62/301,527.12 = 51,256.79/x
  3. Step 3: Cross multiply
    201,012.62x = 301,527.12 × 51,256.79
  4. Step 4: Simplify right side
    201,012.62x = 15,455,311,444.19
  5. Step 5: Solve for x
    x = 15,455,311,444.19/201,012.62
  6. Step 6: Final answer
    x = 76,887.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.