Home / 318,212.55-439,024.05-197,310.33

Finding the Fourth Proportional to 318,212.55, 439,024.05 and 197,310.33

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Solution

The fourth proportional to 318,212.55, 439,024.05 and 197,310.33 is: 272,220.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,212.55 : 439,024.05 = 197,310.33 : x
  2. Step 2: Convert to fraction form
    318,212.55/439,024.05 = 197,310.33/x
  3. Step 3: Cross multiply
    318,212.55x = 439,024.05 × 197,310.33
  4. Step 4: Simplify right side
    318,212.55x = 86,623,980,183.44
  5. Step 5: Solve for x
    x = 86,623,980,183.44/318,212.55
  6. Step 6: Final answer
    x = 272,220.50

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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.