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Finding the Fourth Proportional to 326,303.55, 450,381.67 and 222,979.59

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Solution

The fourth proportional to 326,303.55, 450,381.67 and 222,979.59 is: 307,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,303.55 : 450,381.67 = 222,979.59 : x
  2. Step 2: Convert to fraction form
    326,303.55/450,381.67 = 222,979.59/x
  3. Step 3: Cross multiply
    326,303.55x = 450,381.67 × 222,979.59
  4. Step 4: Simplify right side
    326,303.55x = 100,425,920,829.37
  5. Step 5: Solve for x
    x = 100,425,920,829.37/326,303.55
  6. Step 6: Final answer
    x = 307,768.40

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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.