Home / 290,830.04-436,244.44-80,467.36

Finding the Fourth Proportional to 290,830.04, 436,244.44 and 80,467.36

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Solution

The fourth proportional to 290,830.04, 436,244.44 and 80,467.36 is: 120,700.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,830.04 : 436,244.44 = 80,467.36 : x
  2. Step 2: Convert to fraction form
    290,830.04/436,244.44 = 80,467.36/x
  3. Step 3: Cross multiply
    290,830.04x = 436,244.44 × 80,467.36
  4. Step 4: Simplify right side
    290,830.04x = 35,103,438,401.48
  5. Step 5: Solve for x
    x = 35,103,438,401.48/290,830.04
  6. Step 6: Final answer
    x = 120,700.87

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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.