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Finding the Fourth Proportional to 201,679.47, 302,521.64 and 61,439.31

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Solution

The fourth proportional to 201,679.47, 302,521.64 and 61,439.31 is: 92,159.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,679.47 : 302,521.64 = 61,439.31 : x
  2. Step 2: Convert to fraction form
    201,679.47/302,521.64 = 61,439.31/x
  3. Step 3: Cross multiply
    201,679.47x = 302,521.64 × 61,439.31
  4. Step 4: Simplify right side
    201,679.47x = 18,586,720,514.47
  5. Step 5: Solve for x
    x = 18,586,720,514.47/201,679.47
  6. Step 6: Final answer
    x = 92,159.71

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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.