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Finding the Fourth Proportional to 201,645.80, 302,578.05 and 83,329.10

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Solution

The fourth proportional to 201,645.80, 302,578.05 and 83,329.10 is: 125,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,645.80 : 302,578.05 = 83,329.10 : x
  2. Step 2: Convert to fraction form
    201,645.80/302,578.05 = 83,329.10/x
  3. Step 3: Cross multiply
    201,645.80x = 302,578.05 × 83,329.10
  4. Step 4: Simplify right side
    201,645.80x = 25,213,556,586.26
  5. Step 5: Solve for x
    x = 25,213,556,586.26/201,645.80
  6. Step 6: Final answer
    x = 125,038.84

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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.