Home / 326,890.24-490,298.64-90,266.56

Finding the Fourth Proportional to 326,890.24, 490,298.64 and 90,266.56

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Solution

The fourth proportional to 326,890.24, 490,298.64 and 90,266.56 is: 135,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,890.24 : 490,298.64 = 90,266.56 : x
  2. Step 2: Convert to fraction form
    326,890.24/490,298.64 = 90,266.56/x
  3. Step 3: Cross multiply
    326,890.24x = 490,298.64 × 90,266.56
  4. Step 4: Simplify right side
    326,890.24x = 44,257,571,605.48
  5. Step 5: Solve for x
    x = 44,257,571,605.48/326,890.24
  6. Step 6: Final answer
    x = 135,389.70

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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.