Home / 316,320.19-436,478.83-188,968.75

Finding the Fourth Proportional to 316,320.19, 436,478.83 and 188,968.75

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Solution

The fourth proportional to 316,320.19, 436,478.83 and 188,968.75 is: 260,751.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,320.19 : 436,478.83 = 188,968.75 : x
  2. Step 2: Convert to fraction form
    316,320.19/436,478.83 = 188,968.75/x
  3. Step 3: Cross multiply
    316,320.19x = 436,478.83 × 188,968.75
  4. Step 4: Simplify right side
    316,320.19x = 82,480,858,906.56
  5. Step 5: Solve for x
    x = 82,480,858,906.56/316,320.19
  6. Step 6: Final answer
    x = 260,751.17

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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.