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Finding the Fourth Proportional to 446,615.21, 616,321.51 and 242,669.26

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Solution

The fourth proportional to 446,615.21, 616,321.51 and 242,669.26 is: 334,879.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,615.21 : 616,321.51 = 242,669.26 : x
  2. Step 2: Convert to fraction form
    446,615.21/616,321.51 = 242,669.26/x
  3. Step 3: Cross multiply
    446,615.21x = 616,321.51 × 242,669.26
  4. Step 4: Simplify right side
    446,615.21x = 149,562,284,753.78
  5. Step 5: Solve for x
    x = 149,562,284,753.78/446,615.21
  6. Step 6: Final answer
    x = 334,879.51

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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.