Home / 316,270.20-436,409.82-188,918.76

Finding the Fourth Proportional to 316,270.20, 436,409.82 and 188,918.76

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Solution

The fourth proportional to 316,270.20, 436,409.82 and 188,918.76 is: 260,682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,270.20 : 436,409.82 = 188,918.76 : x
  2. Step 2: Convert to fraction form
    316,270.20/436,409.82 = 188,918.76/x
  3. Step 3: Cross multiply
    316,270.20x = 436,409.82 × 188,918.76
  4. Step 4: Simplify right side
    316,270.20x = 82,446,002,046.22
  5. Step 5: Solve for x
    x = 82,446,002,046.22/316,270.20
  6. Step 6: Final answer
    x = 260,682.17

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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.