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Finding the Fourth Proportional to 355,220.74, 490,237.92 and 194,099.67

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Solution

The fourth proportional to 355,220.74, 490,237.92 and 194,099.67 is: 267,875.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,220.74 : 490,237.92 = 194,099.67 : x
  2. Step 2: Convert to fraction form
    355,220.74/490,237.92 = 194,099.67/x
  3. Step 3: Cross multiply
    355,220.74x = 490,237.92 × 194,099.67
  4. Step 4: Simplify right side
    355,220.74x = 95,155,017,114.69
  5. Step 5: Solve for x
    x = 95,155,017,114.69/355,220.74
  6. Step 6: Final answer
    x = 267,875.73

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1.5x scale

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.