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Finding the Fourth Proportional to 201,900.30, 302,522.40 and 168,439.20

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Solution

The fourth proportional to 201,900.30, 302,522.40 and 168,439.20 is: 252,385.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,900.30 : 302,522.40 = 168,439.20 : x
  2. Step 2: Convert to fraction form
    201,900.30/302,522.40 = 168,439.20/x
  3. Step 3: Cross multiply
    201,900.30x = 302,522.40 × 168,439.20
  4. Step 4: Simplify right side
    201,900.30x = 50,956,631,038.08
  5. Step 5: Solve for x
    x = 50,956,631,038.08/201,900.30
  6. Step 6: Final answer
    x = 252,385.12

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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.