Home / 318,612.19-477,918.24-131,628.55

Finding the Fourth Proportional to 318,612.19, 477,918.24 and 131,628.55

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Solution

The fourth proportional to 318,612.19, 477,918.24 and 131,628.55 is: 197,442.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,612.19 : 477,918.24 = 131,628.55 : x
  2. Step 2: Convert to fraction form
    318,612.19/477,918.24 = 131,628.55/x
  3. Step 3: Cross multiply
    318,612.19x = 477,918.24 × 131,628.55
  4. Step 4: Simplify right side
    318,612.19x = 62,907,684,949.75
  5. Step 5: Solve for x
    x = 62,907,684,949.75/318,612.19
  6. Step 6: Final answer
    x = 197,442.81

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1.5x scale

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.