Home / 245,377.06-338,878.49-218,630.23

Finding the Fourth Proportional to 245,377.06, 338,878.49 and 218,630.23

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Solution

The fourth proportional to 245,377.06, 338,878.49 and 218,630.23 is: 301,939.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,377.06 : 338,878.49 = 218,630.23 : x
  2. Step 2: Convert to fraction form
    245,377.06/338,878.49 = 218,630.23/x
  3. Step 3: Cross multiply
    245,377.06x = 338,878.49 × 218,630.23
  4. Step 4: Simplify right side
    245,377.06x = 74,089,082,210.75
  5. Step 5: Solve for x
    x = 74,089,082,210.75/245,377.06
  6. Step 6: Final answer
    x = 301,939.73

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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.