Home / 397,271.18-548,245.04-215,995.31

Finding the Fourth Proportional to 397,271.18, 548,245.04 and 215,995.31

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Solution

The fourth proportional to 397,271.18, 548,245.04 and 215,995.31 is: 298,079.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,271.18 : 548,245.04 = 215,995.31 : x
  2. Step 2: Convert to fraction form
    397,271.18/548,245.04 = 215,995.31/x
  3. Step 3: Cross multiply
    397,271.18x = 548,245.04 × 215,995.31
  4. Step 4: Simplify right side
    397,271.18x = 118,418,353,549.56
  5. Step 5: Solve for x
    x = 118,418,353,549.56/397,271.18
  6. Step 6: Final answer
    x = 298,079.40

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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.