Home / 397,730.10-548,867.63-218,882.10

Finding the Fourth Proportional to 397,730.10, 548,867.63 and 218,882.10

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Solution

The fourth proportional to 397,730.10, 548,867.63 and 218,882.10 is: 302,057.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,730.10 : 548,867.63 = 218,882.10 : x
  2. Step 2: Convert to fraction form
    397,730.10/548,867.63 = 218,882.10/x
  3. Step 3: Cross multiply
    397,730.10x = 548,867.63 × 218,882.10
  4. Step 4: Simplify right side
    397,730.10x = 120,137,299,476.42
  5. Step 5: Solve for x
    x = 120,137,299,476.42/397,730.10
  6. Step 6: Final answer
    x = 302,057.35

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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.