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Finding the Fourth Proportional to 201,813.60, 302,785.20 and 89,450.40

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Solution

The fourth proportional to 201,813.60, 302,785.20 and 89,450.40 is: 134,204.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,813.60 : 302,785.20 = 89,450.40 : x
  2. Step 2: Convert to fraction form
    201,813.60/302,785.20 = 89,450.40/x
  3. Step 3: Cross multiply
    201,813.60x = 302,785.20 × 89,450.40
  4. Step 4: Simplify right side
    201,813.60x = 27,084,257,254.08
  5. Step 5: Solve for x
    x = 27,084,257,254.08/201,813.60
  6. Step 6: Final answer
    x = 134,204.32

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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.