Home / 813,173.90-1,219,668.54-214,181.94

Finding the Fourth Proportional to 813,173.90, 1,219,668.54 and 214,181.94

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Solution

The fourth proportional to 813,173.90, 1,219,668.54 and 214,181.94 is: 321,248.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,173.90 : 1,219,668.54 = 214,181.94 : x
  2. Step 2: Convert to fraction form
    813,173.90/1,219,668.54 = 214,181.94/x
  3. Step 3: Cross multiply
    813,173.90x = 1,219,668.54 × 214,181.94
  4. Step 4: Simplify right side
    813,173.90x = 261,230,974,054.17
  5. Step 5: Solve for x
    x = 261,230,974,054.17/813,173.90
  6. Step 6: Final answer
    x = 321,248.60

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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.