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Finding the Fourth Proportional to 446,850, 616,653 and 245,646

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Solution

The fourth proportional to 446,850, 616,653 and 245,646 is: 338,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,850 : 616,653 = 245,646 : x
  2. Step 2: Convert to fraction form
    446,850/616,653 = 245,646/x
  3. Step 3: Cross multiply
    446,850x = 616,653 × 245,646
  4. Step 4: Simplify right side
    446,850x = 151,478,342,838
  5. Step 5: Solve for x
    x = 151,478,342,838/446,850
  6. Step 6: Final answer
    x = 338,991.48

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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.