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Finding the Fourth Proportional to 201,747.40, 302,621.10 and 83,379.40

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Solution

The fourth proportional to 201,747.40, 302,621.10 and 83,379.40 is: 125,069.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,747.40 : 302,621.10 = 83,379.40 : x
  2. Step 2: Convert to fraction form
    201,747.40/302,621.10 = 83,379.40/x
  3. Step 3: Cross multiply
    201,747.40x = 302,621.10 × 83,379.40
  4. Step 4: Simplify right side
    201,747.40x = 25,232,365,745.34
  5. Step 5: Solve for x
    x = 25,232,365,745.34/201,747.40
  6. Step 6: Final answer
    x = 125,069.10

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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.