Home / 326,948.55-490,428.99-90,297.51

Finding the Fourth Proportional to 326,948.55, 490,428.99 and 90,297.51

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Solution

The fourth proportional to 326,948.55, 490,428.99 and 90,297.51 is: 135,447.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,948.55 : 490,428.99 = 90,297.51 : x
  2. Step 2: Convert to fraction form
    326,948.55/490,428.99 = 90,297.51/x
  3. Step 3: Cross multiply
    326,948.55x = 490,428.99 × 90,297.51
  4. Step 4: Simplify right side
    326,948.55x = 44,284,516,628.81
  5. Step 5: Solve for x
    x = 44,284,516,628.81/326,948.55
  6. Step 6: Final answer
    x = 135,447.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.