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Finding the Fourth Proportional to 219,904.12, 303,311.21 and 201,813.27

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Solution

The fourth proportional to 219,904.12, 303,311.21 and 201,813.27 is: 278,358.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,904.12 : 303,311.21 = 201,813.27 : x
  2. Step 2: Convert to fraction form
    219,904.12/303,311.21 = 201,813.27/x
  3. Step 3: Cross multiply
    219,904.12x = 303,311.21 × 201,813.27
  4. Step 4: Simplify right side
    219,904.12x = 61,212,227,804.20
  5. Step 5: Solve for x
    x = 61,212,227,804.20/219,904.12
  6. Step 6: Final answer
    x = 278,358.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.