Home / 327,019.40-490,529.32-90,362.31

Finding the Fourth Proportional to 327,019.40, 490,529.32 and 90,362.31

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Solution

The fourth proportional to 327,019.40, 490,529.32 and 90,362.31 is: 135,543.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,019.40 : 490,529.32 = 90,362.31 : x
  2. Step 2: Convert to fraction form
    327,019.40/490,529.32 = 90,362.31/x
  3. Step 3: Cross multiply
    327,019.40x = 490,529.32 × 90,362.31
  4. Step 4: Simplify right side
    327,019.40x = 44,325,362,477.93
  5. Step 5: Solve for x
    x = 44,325,362,477.93/327,019.40
  6. Step 6: Final answer
    x = 135,543.53

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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.