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Finding the Fourth Proportional to 326,313.06, 450,453.34 and 305,885.94

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Solution

The fourth proportional to 326,313.06, 450,453.34 and 305,885.94 is: 422,255.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,313.06 : 450,453.34 = 305,885.94 : x
  2. Step 2: Convert to fraction form
    326,313.06/450,453.34 = 305,885.94/x
  3. Step 3: Cross multiply
    326,313.06x = 450,453.34 × 305,885.94
  4. Step 4: Simplify right side
    326,313.06x = 137,787,343,332.04
  5. Step 5: Solve for x
    x = 137,787,343,332.04/326,313.06
  6. Step 6: Final answer
    x = 422,255.07

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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.