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Finding the Fourth Proportional to 603,097.50, 905,060.97 and 209,113.50

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Solution

The fourth proportional to 603,097.50, 905,060.97 and 209,113.50 is: 313,814.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,097.50 : 905,060.97 = 209,113.50 : x
  2. Step 2: Convert to fraction form
    603,097.50/905,060.97 = 209,113.50/x
  3. Step 3: Cross multiply
    603,097.50x = 905,060.97 × 209,113.50
  4. Step 4: Simplify right side
    603,097.50x = 189,260,467,150.10
  5. Step 5: Solve for x
    x = 189,260,467,150.10/603,097.50
  6. Step 6: Final answer
    x = 313,814.05

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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.