Home / 218,954.10-302,183.55-123,458.88

Finding the Fourth Proportional to 218,954.10, 302,183.55 and 123,458.88

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Solution

The fourth proportional to 218,954.10, 302,183.55 and 123,458.88 is: 170,388.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,954.10 : 302,183.55 = 123,458.88 : x
  2. Step 2: Convert to fraction form
    218,954.10/302,183.55 = 123,458.88/x
  3. Step 3: Cross multiply
    218,954.10x = 302,183.55 × 123,458.88
  4. Step 4: Simplify right side
    218,954.10x = 37,307,242,637.42
  5. Step 5: Solve for x
    x = 37,307,242,637.42/218,954.10
  6. Step 6: Final answer
    x = 170,388.42

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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.