Home / 449,112.60-673,668.90-212,916.60

Finding the Fourth Proportional to 449,112.60, 673,668.90 and 212,916.60

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Solution

The fourth proportional to 449,112.60, 673,668.90 and 212,916.60 is: 319,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,112.60 : 673,668.90 = 212,916.60 : x
  2. Step 2: Convert to fraction form
    449,112.60/673,668.90 = 212,916.60/x
  3. Step 3: Cross multiply
    449,112.60x = 673,668.90 × 212,916.60
  4. Step 4: Simplify right side
    449,112.60x = 143,435,291,713.74
  5. Step 5: Solve for x
    x = 143,435,291,713.74/449,112.60
  6. Step 6: Final answer
    x = 319,374.90

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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.