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Finding the Fourth Proportional to 489,498.37, 734,231.39 and 201,300.03

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Solution

The fourth proportional to 489,498.37, 734,231.39 and 201,300.03 is: 301,943.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,498.37 : 734,231.39 = 201,300.03 : x
  2. Step 2: Convert to fraction form
    489,498.37/734,231.39 = 201,300.03/x
  3. Step 3: Cross multiply
    489,498.37x = 734,231.39 × 201,300.03
  4. Step 4: Simplify right side
    489,498.37x = 147,800,801,337.19
  5. Step 5: Solve for x
    x = 147,800,801,337.19/489,498.37
  6. Step 6: Final answer
    x = 301,943.40

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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.