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Finding the Fourth Proportional to 326,642.67, 450,725.08 and 190,645.43

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Solution

The fourth proportional to 326,642.67, 450,725.08 and 190,645.43 is: 263,066.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,642.67 : 450,725.08 = 190,645.43 : x
  2. Step 2: Convert to fraction form
    326,642.67/450,725.08 = 190,645.43/x
  3. Step 3: Cross multiply
    326,642.67x = 450,725.08 × 190,645.43
  4. Step 4: Simplify right side
    326,642.67x = 85,928,676,688.38
  5. Step 5: Solve for x
    x = 85,928,676,688.38/326,642.67
  6. Step 6: Final answer
    x = 263,066.29

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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.