Home / 290,372.04-435,560.28-80,021.52

Finding the Fourth Proportional to 290,372.04, 435,560.28 and 80,021.52

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Solution

The fourth proportional to 290,372.04, 435,560.28 and 80,021.52 is: 120,032.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,372.04 : 435,560.28 = 80,021.52 : x
  2. Step 2: Convert to fraction form
    290,372.04/435,560.28 = 80,021.52/x
  3. Step 3: Cross multiply
    290,372.04x = 435,560.28 × 80,021.52
  4. Step 4: Simplify right side
    290,372.04x = 34,854,195,657.23
  5. Step 5: Solve for x
    x = 34,854,195,657.23/290,372.04
  6. Step 6: Final answer
    x = 120,032.89

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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.