Home / 290,654.46-436,006.98-80,292.60

Finding the Fourth Proportional to 290,654.46, 436,006.98 and 80,292.60

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Solution

The fourth proportional to 290,654.46, 436,006.98 and 80,292.60 is: 120,445.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,654.46 : 436,006.98 = 80,292.60 : x
  2. Step 2: Convert to fraction form
    290,654.46/436,006.98 = 80,292.60/x
  3. Step 3: Cross multiply
    290,654.46x = 436,006.98 × 80,292.60
  4. Step 4: Simplify right side
    290,654.46x = 35,008,134,042.35
  5. Step 5: Solve for x
    x = 35,008,134,042.35/290,654.46
  6. Step 6: Final answer
    x = 120,445.89

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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.