Home / 290,723.80-436,085.70-227,738.20

Finding the Fourth Proportional to 290,723.80, 436,085.70 and 227,738.20

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Solution

The fourth proportional to 290,723.80, 436,085.70 and 227,738.20 is: 341,607.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,723.80 : 436,085.70 = 227,738.20 : x
  2. Step 2: Convert to fraction form
    290,723.80/436,085.70 = 227,738.20/x
  3. Step 3: Cross multiply
    290,723.80x = 436,085.70 × 227,738.20
  4. Step 4: Simplify right side
    290,723.80x = 99,313,372,363.74
  5. Step 5: Solve for x
    x = 99,313,372,363.74/290,723.80
  6. Step 6: Final answer
    x = 341,607.30

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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.