Home / 347,021.31-478,890.69-201,861.93

Finding the Fourth Proportional to 347,021.31, 478,890.69 and 201,861.93

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Solution

The fourth proportional to 347,021.31, 478,890.69 and 201,861.93 is: 278,570.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,021.31 : 478,890.69 = 201,861.93 : x
  2. Step 2: Convert to fraction form
    347,021.31/478,890.69 = 201,861.93/x
  3. Step 3: Cross multiply
    347,021.31x = 478,890.69 × 201,861.93
  4. Step 4: Simplify right side
    347,021.31x = 96,669,798,942.43
  5. Step 5: Solve for x
    x = 96,669,798,942.43/347,021.31
  6. Step 6: Final answer
    x = 278,570.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.