Home / 331,636.75-457,670.96-188,421.05

Finding the Fourth Proportional to 331,636.75, 457,670.96 and 188,421.05

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Solution

The fourth proportional to 331,636.75, 457,670.96 and 188,421.05 is: 260,028.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,636.75 : 457,670.96 = 188,421.05 : x
  2. Step 2: Convert to fraction form
    331,636.75/457,670.96 = 188,421.05/x
  3. Step 3: Cross multiply
    331,636.75x = 457,670.96 × 188,421.05
  4. Step 4: Simplify right side
    331,636.75x = 86,234,843,746.36
  5. Step 5: Solve for x
    x = 86,234,843,746.36/331,636.75
  6. Step 6: Final answer
    x = 260,028.01

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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.