Home / 218,944.08-302,142.33-123,450.12

Finding the Fourth Proportional to 218,944.08, 302,142.33 and 123,450.12

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Solution

The fourth proportional to 218,944.08, 302,142.33 and 123,450.12 is: 170,360.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,944.08 : 302,142.33 = 123,450.12 : x
  2. Step 2: Convert to fraction form
    218,944.08/302,142.33 = 123,450.12/x
  3. Step 3: Cross multiply
    218,944.08x = 302,142.33 × 123,450.12
  4. Step 4: Simplify right side
    218,944.08x = 37,299,506,895.58
  5. Step 5: Solve for x
    x = 37,299,506,895.58/218,944.08
  6. Step 6: Final answer
    x = 170,360.88

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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.