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Finding the Fourth Proportional to 202,284.60, 303,599.70 and 90,137.40

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Solution

The fourth proportional to 202,284.60, 303,599.70 and 90,137.40 is: 135,283.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,284.60 : 303,599.70 = 90,137.40 : x
  2. Step 2: Convert to fraction form
    202,284.60/303,599.70 = 90,137.40/x
  3. Step 3: Cross multiply
    202,284.60x = 303,599.70 × 90,137.40
  4. Step 4: Simplify right side
    202,284.60x = 27,365,687,598.78
  5. Step 5: Solve for x
    x = 27,365,687,598.78/202,284.60
  6. Step 6: Final answer
    x = 135,283.10

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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.