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Finding the Fourth Proportional to 355,661.79, 490,822.94 and 194,526.36

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Solution

The fourth proportional to 355,661.79, 490,822.94 and 194,526.36 is: 268,451.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,661.79 : 490,822.94 = 194,526.36 : x
  2. Step 2: Convert to fraction form
    355,661.79/490,822.94 = 194,526.36/x
  3. Step 3: Cross multiply
    355,661.79x = 490,822.94 × 194,526.36
  4. Step 4: Simplify right side
    355,661.79x = 95,478,000,409.01
  5. Step 5: Solve for x
    x = 95,478,000,409.01/355,661.79
  6. Step 6: Final answer
    x = 268,451.67

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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.