Home / 290,719.80-436,079.70-227,734.20

Finding the Fourth Proportional to 290,719.80, 436,079.70 and 227,734.20

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Solution

The fourth proportional to 290,719.80, 436,079.70 and 227,734.20 is: 341,601.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,719.80 : 436,079.70 = 227,734.20 : x
  2. Step 2: Convert to fraction form
    290,719.80/436,079.70 = 227,734.20/x
  3. Step 3: Cross multiply
    290,719.80x = 436,079.70 × 227,734.20
  4. Step 4: Simplify right side
    290,719.80x = 99,310,261,615.74
  5. Step 5: Solve for x
    x = 99,310,261,615.74/290,719.80
  6. Step 6: Final answer
    x = 341,601.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.