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Finding the Fourth Proportional to 302,877.55, 417,969.07 and 166,912.57

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Solution

The fourth proportional to 302,877.55, 417,969.07 and 166,912.57 is: 230,338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,877.55 : 417,969.07 = 166,912.57 : x
  2. Step 2: Convert to fraction form
    302,877.55/417,969.07 = 166,912.57/x
  3. Step 3: Cross multiply
    302,877.55x = 417,969.07 × 166,912.57
  4. Step 4: Simplify right side
    302,877.55x = 69,764,291,654.21
  5. Step 5: Solve for x
    x = 69,764,291,654.21/302,877.55
  6. Step 6: Final answer
    x = 230,338.27

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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.