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Finding the Fourth Proportional to 446,955.78, 670,855 and 162,920.86

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Solution

The fourth proportional to 446,955.78, 670,855 and 162,920.86 is: 244,534.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,955.78 : 670,855 = 162,920.86 : x
  2. Step 2: Convert to fraction form
    446,955.78/670,855 = 162,920.86/x
  3. Step 3: Cross multiply
    446,955.78x = 670,855 × 162,920.86
  4. Step 4: Simplify right side
    446,955.78x = 109,296,273,535.30
  5. Step 5: Solve for x
    x = 109,296,273,535.30/446,955.78
  6. Step 6: Final answer
    x = 244,534.87

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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.