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Finding the Fourth Proportional to 326,257.70, 450,393.90 and 218,788.52

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Solution

The fourth proportional to 326,257.70, 450,393.90 and 218,788.52 is: 302,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,257.70 : 450,393.90 = 218,788.52 : x
  2. Step 2: Convert to fraction form
    326,257.70/450,393.90 = 218,788.52/x
  3. Step 3: Cross multiply
    326,257.70x = 450,393.90 × 218,788.52
  4. Step 4: Simplify right side
    326,257.70x = 98,541,014,798.03
  5. Step 5: Solve for x
    x = 98,541,014,798.03/326,257.70
  6. Step 6: Final answer
    x = 302,034.30

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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.