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Finding the Fourth Proportional to 302,783.42, 417,795.47 and 171,940.67

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Solution

The fourth proportional to 302,783.42, 417,795.47 and 171,940.67 is: 237,252.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,783.42 : 417,795.47 = 171,940.67 : x
  2. Step 2: Convert to fraction form
    302,783.42/417,795.47 = 171,940.67/x
  3. Step 3: Cross multiply
    302,783.42x = 417,795.47 × 171,940.67
  4. Step 4: Simplify right side
    302,783.42x = 71,836,034,647.69
  5. Step 5: Solve for x
    x = 71,836,034,647.69/302,783.42
  6. Step 6: Final answer
    x = 237,252.21

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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.