Home / 397,627.65-548,685.09-225,510.75

Finding the Fourth Proportional to 397,627.65, 548,685.09 and 225,510.75

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Solution

The fourth proportional to 397,627.65, 548,685.09 and 225,510.75 is: 311,181.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,627.65 : 548,685.09 = 225,510.75 : x
  2. Step 2: Convert to fraction form
    397,627.65/548,685.09 = 225,510.75/x
  3. Step 3: Cross multiply
    397,627.65x = 548,685.09 × 225,510.75
  4. Step 4: Simplify right side
    397,627.65x = 123,734,386,159.72
  5. Step 5: Solve for x
    x = 123,734,386,159.72/397,627.65
  6. Step 6: Final answer
    x = 311,181.54

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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.