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Finding the Fourth Proportional to 446,986.20, 616,840.80 and 245,782.20

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Solution

The fourth proportional to 446,986.20, 616,840.80 and 245,782.20 is: 339,179.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,986.20 : 616,840.80 = 245,782.20 : x
  2. Step 2: Convert to fraction form
    446,986.20/616,840.80 = 245,782.20/x
  3. Step 3: Cross multiply
    446,986.20x = 616,840.80 × 245,782.20
  4. Step 4: Simplify right side
    446,986.20x = 151,608,488,873.76
  5. Step 5: Solve for x
    x = 151,608,488,873.76/446,986.20
  6. Step 6: Final answer
    x = 339,179.35

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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.