Home / 290,012.03-435,038.78-121,362.53

Finding the Fourth Proportional to 290,012.03, 435,038.78 and 121,362.53

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Solution

The fourth proportional to 290,012.03, 435,038.78 and 121,362.53 is: 182,052.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,012.03 : 435,038.78 = 121,362.53 : x
  2. Step 2: Convert to fraction form
    290,012.03/435,038.78 = 121,362.53/x
  3. Step 3: Cross multiply
    290,012.03x = 435,038.78 × 121,362.53
  4. Step 4: Simplify right side
    290,012.03x = 52,797,408,379.92
  5. Step 5: Solve for x
    x = 52,797,408,379.92/290,012.03
  6. Step 6: Final answer
    x = 182,052.48

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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.