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Finding the Fourth Proportional to 202,075.60, 303,286.20 and 89,928.40

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Solution

The fourth proportional to 202,075.60, 303,286.20 and 89,928.40 is: 134,969.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,075.60 : 303,286.20 = 89,928.40 : x
  2. Step 2: Convert to fraction form
    202,075.60/303,286.20 = 89,928.40/x
  3. Step 3: Cross multiply
    202,075.60x = 303,286.20 × 89,928.40
  4. Step 4: Simplify right side
    202,075.60x = 27,274,042,708.08
  5. Step 5: Solve for x
    x = 27,274,042,708.08/202,075.60
  6. Step 6: Final answer
    x = 134,969.50

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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.