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Finding the Fourth Proportional to 201,488.31, 302,277.42 and 61,257.87

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Solution

The fourth proportional to 201,488.31, 302,277.42 and 61,257.87 is: 91,900.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,488.31 : 302,277.42 = 61,257.87 : x
  2. Step 2: Convert to fraction form
    201,488.31/302,277.42 = 61,257.87/x
  3. Step 3: Cross multiply
    201,488.31x = 302,277.42 × 61,257.87
  4. Step 4: Simplify right side
    201,488.31x = 18,516,870,898.30
  5. Step 5: Solve for x
    x = 18,516,870,898.30/201,488.31
  6. Step 6: Final answer
    x = 91,900.47

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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.