Home / 361,608.03-542,370.40-145,458.65

Finding the Fourth Proportional to 361,608.03, 542,370.40 and 145,458.65

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Solution

The fourth proportional to 361,608.03, 542,370.40 and 145,458.65 is: 218,171.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,608.03 : 542,370.40 = 145,458.65 : x
  2. Step 2: Convert to fraction form
    361,608.03/542,370.40 = 145,458.65/x
  3. Step 3: Cross multiply
    361,608.03x = 542,370.40 × 145,458.65
  4. Step 4: Simplify right side
    361,608.03x = 78,892,467,176.24
  5. Step 5: Solve for x
    x = 78,892,467,176.24/361,608.03
  6. Step 6: Final answer
    x = 218,171.23

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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.