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Finding the Fourth Proportional to 302,907.82, 418,011.42 and 166,941.47

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Solution

The fourth proportional to 302,907.82, 418,011.42 and 166,941.47 is: 230,378.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,907.82 : 418,011.42 = 166,941.47 : x
  2. Step 2: Convert to fraction form
    302,907.82/418,011.42 = 166,941.47/x
  3. Step 3: Cross multiply
    302,907.82x = 418,011.42 × 166,941.47
  4. Step 4: Simplify right side
    302,907.82x = 69,783,440,931.59
  5. Step 5: Solve for x
    x = 69,783,440,931.59/302,907.82
  6. Step 6: Final answer
    x = 230,378.47

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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.