Home / 455,514.60-683,466.30-218,735.40

Finding the Fourth Proportional to 455,514.60, 683,466.30 and 218,735.40

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Solution

The fourth proportional to 455,514.60, 683,466.30 and 218,735.40 is: 328,196.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,514.60 : 683,466.30 = 218,735.40 : x
  2. Step 2: Convert to fraction form
    455,514.60/683,466.30 = 218,735.40/x
  3. Step 3: Cross multiply
    455,514.60x = 683,466.30 × 218,735.40
  4. Step 4: Simplify right side
    455,514.60x = 149,498,274,517.02
  5. Step 5: Solve for x
    x = 149,498,274,517.02/455,514.60
  6. Step 6: Final answer
    x = 328,196.45

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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.