Home / 397,623.65-548,757.20-225,597.65

Finding the Fourth Proportional to 397,623.65, 548,757.20 and 225,597.65

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Solution

The fourth proportional to 397,623.65, 548,757.20 and 225,597.65 is: 311,345.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,623.65 : 548,757.20 = 225,597.65 : x
  2. Step 2: Convert to fraction form
    397,623.65/548,757.20 = 225,597.65/x
  3. Step 3: Cross multiply
    397,623.65x = 548,757.20 × 225,597.65
  4. Step 4: Simplify right side
    397,623.65x = 123,798,330,868.81
  5. Step 5: Solve for x
    x = 123,798,330,868.81/397,623.65
  6. Step 6: Final answer
    x = 311,345.50

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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.