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Finding the Fourth Proportional to 201,815.07, 302,722.67 and 83,356.21

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Solution

The fourth proportional to 201,815.07, 302,722.67 and 83,356.21 is: 125,034.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,815.07 : 302,722.67 = 83,356.21 : x
  2. Step 2: Convert to fraction form
    201,815.07/302,722.67 = 83,356.21/x
  3. Step 3: Cross multiply
    201,815.07x = 302,722.67 × 83,356.21
  4. Step 4: Simplify right side
    201,815.07x = 25,233,814,452.28
  5. Step 5: Solve for x
    x = 25,233,814,452.28/201,815.07
  6. Step 6: Final answer
    x = 125,034.34

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1.5x scale

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.