Home / 218,815.24-301,980.96-122,025.64

Finding the Fourth Proportional to 218,815.24, 301,980.96 and 122,025.64

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Solution

The fourth proportional to 218,815.24, 301,980.96 and 122,025.64 is: 168,404.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,815.24 : 301,980.96 = 122,025.64 : x
  2. Step 2: Convert to fraction form
    218,815.24/301,980.96 = 122,025.64/x
  3. Step 3: Cross multiply
    218,815.24x = 301,980.96 × 122,025.64
  4. Step 4: Simplify right side
    218,815.24x = 36,849,419,911.81
  5. Step 5: Solve for x
    x = 36,849,419,911.81/218,815.24
  6. Step 6: Final answer
    x = 168,404.27

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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.