Home / 290,966.76-436,450.14-80,604.72

Finding the Fourth Proportional to 290,966.76, 436,450.14 and 80,604.72

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Solution

The fourth proportional to 290,966.76, 436,450.14 and 80,604.72 is: 120,907.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,966.76 : 436,450.14 = 80,604.72 : x
  2. Step 2: Convert to fraction form
    290,966.76/436,450.14 = 80,604.72/x
  3. Step 3: Cross multiply
    290,966.76x = 436,450.14 × 80,604.72
  4. Step 4: Simplify right side
    290,966.76x = 35,179,941,328.66
  5. Step 5: Solve for x
    x = 35,179,941,328.66/290,966.76
  6. Step 6: Final answer
    x = 120,907.08

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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.