Home / 347,020.90-478,890.14-201,861.52

Finding the Fourth Proportional to 347,020.90, 478,890.14 and 201,861.52

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Solution

The fourth proportional to 347,020.90, 478,890.14 and 201,861.52 is: 278,569.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,020.90 : 478,890.14 = 201,861.52 : x
  2. Step 2: Convert to fraction form
    347,020.90/478,890.14 = 201,861.52/x
  3. Step 3: Cross multiply
    347,020.90x = 478,890.14 × 201,861.52
  4. Step 4: Simplify right side
    347,020.90x = 96,669,491,573.41
  5. Step 5: Solve for x
    x = 96,669,491,573.41/347,020.90
  6. Step 6: Final answer
    x = 278,569.65

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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.