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Finding the Fourth Proportional to 326,412.82, 450,334.14 and 213,301.18

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Solution

The fourth proportional to 326,412.82, 450,334.14 and 213,301.18 is: 294,280.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,412.82 : 450,334.14 = 213,301.18 : x
  2. Step 2: Convert to fraction form
    326,412.82/450,334.14 = 213,301.18/x
  3. Step 3: Cross multiply
    326,412.82x = 450,334.14 × 213,301.18
  4. Step 4: Simplify right side
    326,412.82x = 96,056,803,456.29
  5. Step 5: Solve for x
    x = 96,056,803,456.29/326,412.82
  6. Step 6: Final answer
    x = 294,280.12

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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.