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Finding the Fourth Proportional to 201,809.60, 302,779.20 and 89,446.40

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Solution

The fourth proportional to 201,809.60, 302,779.20 and 89,446.40 is: 134,198.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,809.60 : 302,779.20 = 89,446.40 : x
  2. Step 2: Convert to fraction form
    201,809.60/302,779.20 = 89,446.40/x
  3. Step 3: Cross multiply
    201,809.60x = 302,779.20 × 89,446.40
  4. Step 4: Simplify right side
    201,809.60x = 27,082,509,434.88
  5. Step 5: Solve for x
    x = 27,082,509,434.88/201,809.60
  6. Step 6: Final answer
    x = 134,198.32

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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.