Home / 324,918.50-487,384.43-100,279.08

Finding the Fourth Proportional to 324,918.50, 487,384.43 and 100,279.08

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Solution

The fourth proportional to 324,918.50, 487,384.43 and 100,279.08 is: 150,420.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,918.50 : 487,384.43 = 100,279.08 : x
  2. Step 2: Convert to fraction form
    324,918.50/487,384.43 = 100,279.08/x
  3. Step 3: Cross multiply
    324,918.50x = 487,384.43 × 100,279.08
  4. Step 4: Simplify right side
    324,918.50x = 48,874,461,745.33
  5. Step 5: Solve for x
    x = 48,874,461,745.33/324,918.50
  6. Step 6: Final answer
    x = 150,420.68

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1.5x scale

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.