Home / 326,900.24-490,313.64-90,276.56

Finding the Fourth Proportional to 326,900.24, 490,313.64 and 90,276.56

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Solution

The fourth proportional to 326,900.24, 490,313.64 and 90,276.56 is: 135,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,900.24 : 490,313.64 = 90,276.56 : x
  2. Step 2: Convert to fraction form
    326,900.24/490,313.64 = 90,276.56/x
  3. Step 3: Cross multiply
    326,900.24x = 490,313.64 × 90,276.56
  4. Step 4: Simplify right side
    326,900.24x = 44,263,828,740.28
  5. Step 5: Solve for x
    x = 44,263,828,740.28/326,900.24
  6. Step 6: Final answer
    x = 135,404.70

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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.