Home / 455,262.20-682,893.30-218,547.80

Finding the Fourth Proportional to 455,262.20, 682,893.30 and 218,547.80

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Solution

The fourth proportional to 455,262.20, 682,893.30 and 218,547.80 is: 327,821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,262.20 : 682,893.30 = 218,547.80 : x
  2. Step 2: Convert to fraction form
    455,262.20/682,893.30 = 218,547.80/x
  3. Step 3: Cross multiply
    455,262.20x = 682,893.30 × 218,547.80
  4. Step 4: Simplify right side
    455,262.20x = 149,244,828,349.74
  5. Step 5: Solve for x
    x = 149,244,828,349.74/455,262.20
  6. Step 6: Final answer
    x = 327,821.70

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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.