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Finding the Fourth Proportional to 302,308.75, 417,186.48 and 168,172.75

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Solution

The fourth proportional to 302,308.75, 417,186.48 and 168,172.75 is: 232,078.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,308.75 : 417,186.48 = 168,172.75 : x
  2. Step 2: Convert to fraction form
    302,308.75/417,186.48 = 168,172.75/x
  3. Step 3: Cross multiply
    302,308.75x = 417,186.48 × 168,172.75
  4. Step 4: Simplify right side
    302,308.75x = 70,159,397,604.42
  5. Step 5: Solve for x
    x = 70,159,397,604.42/302,308.75
  6. Step 6: Final answer
    x = 232,078.62

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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.