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Finding the Fourth Proportional to 324,298.48, 447,654.48 and 255,208.72

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Solution

The fourth proportional to 324,298.48, 447,654.48 and 255,208.72 is: 352,284.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,298.48 : 447,654.48 = 255,208.72 : x
  2. Step 2: Convert to fraction form
    324,298.48/447,654.48 = 255,208.72/x
  3. Step 3: Cross multiply
    324,298.48x = 447,654.48 × 255,208.72
  4. Step 4: Simplify right side
    324,298.48x = 114,245,326,843.07
  5. Step 5: Solve for x
    x = 114,245,326,843.07/324,298.48
  6. Step 6: Final answer
    x = 352,284.50

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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.