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Finding the Fourth Proportional to 292,530, 438,795 and 70,914

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Solution

The fourth proportional to 292,530, 438,795 and 70,914 is: 106,371

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,530 : 438,795 = 70,914 : x
  2. Step 2: Convert to fraction form
    292,530/438,795 = 70,914/x
  3. Step 3: Cross multiply
    292,530x = 438,795 × 70,914
  4. Step 4: Simplify right side
    292,530x = 31,116,708,630
  5. Step 5: Solve for x
    x = 31,116,708,630/292,530
  6. Step 6: Final answer
    x = 106,371

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.