Home / 290,062.80-400,360.20-198,219.24

Finding the Fourth Proportional to 290,062.80, 400,360.20 and 198,219.24

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Solution

The fourth proportional to 290,062.80, 400,360.20 and 198,219.24 is: 273,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,062.80 : 400,360.20 = 198,219.24 : x
  2. Step 2: Convert to fraction form
    290,062.80/400,360.20 = 198,219.24/x
  3. Step 3: Cross multiply
    290,062.80x = 400,360.20 × 198,219.24
  4. Step 4: Simplify right side
    290,062.80x = 79,359,094,570.25
  5. Step 5: Solve for x
    x = 79,359,094,570.25/290,062.80
  6. Step 6: Final answer
    x = 273,592.80

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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.