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Finding the Fourth Proportional to 202,323.40, 303,485.10 and 84,079.60

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Solution

The fourth proportional to 202,323.40, 303,485.10 and 84,079.60 is: 126,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,323.40 : 303,485.10 = 84,079.60 : x
  2. Step 2: Convert to fraction form
    202,323.40/303,485.10 = 84,079.60/x
  3. Step 3: Cross multiply
    202,323.40x = 303,485.10 × 84,079.60
  4. Step 4: Simplify right side
    202,323.40x = 25,516,905,813.96
  5. Step 5: Solve for x
    x = 25,516,905,813.96/202,323.40
  6. Step 6: Final answer
    x = 126,119.40

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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.