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Finding the Fourth Proportional to 404,080.38, 557,628.30 and 220,318.92

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Solution

The fourth proportional to 404,080.38, 557,628.30 and 220,318.92 is: 304,038.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,080.38 : 557,628.30 = 220,318.92 : x
  2. Step 2: Convert to fraction form
    404,080.38/557,628.30 = 220,318.92/x
  3. Step 3: Cross multiply
    404,080.38x = 557,628.30 × 220,318.92
  4. Step 4: Simplify right side
    404,080.38x = 122,856,064,817.44
  5. Step 5: Solve for x
    x = 122,856,064,817.44/404,080.38
  6. Step 6: Final answer
    x = 304,038.68

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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.