Home / 397,464.32-548,498.16-225,415.04

Finding the Fourth Proportional to 397,464.32, 548,498.16 and 225,415.04

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Solution

The fourth proportional to 397,464.32, 548,498.16 and 225,415.04 is: 311,071.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,464.32 : 548,498.16 = 225,415.04 : x
  2. Step 2: Convert to fraction form
    397,464.32/548,498.16 = 225,415.04/x
  3. Step 3: Cross multiply
    397,464.32x = 548,498.16 × 225,415.04
  4. Step 4: Simplify right side
    397,464.32x = 123,639,734,676.33
  5. Step 5: Solve for x
    x = 123,639,734,676.33/397,464.32
  6. Step 6: Final answer
    x = 311,071.28

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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.