Home / 331,440.05-457,390.40-188,203.10

Finding the Fourth Proportional to 331,440.05, 457,390.40 and 188,203.10

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Solution

The fourth proportional to 331,440.05, 457,390.40 and 188,203.10 is: 259,722.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,440.05 : 457,390.40 = 188,203.10 : x
  2. Step 2: Convert to fraction form
    331,440.05/457,390.40 = 188,203.10/x
  3. Step 3: Cross multiply
    331,440.05x = 457,390.40 × 188,203.10
  4. Step 4: Simplify right side
    331,440.05x = 86,082,287,962.27
  5. Step 5: Solve for x
    x = 86,082,287,962.27/331,440.05
  6. Step 6: Final answer
    x = 259,722.04

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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.