Home / 316,069.47-436,173.06-172,830.54

Finding the Fourth Proportional to 316,069.47, 436,173.06 and 172,830.54

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Solution

The fourth proportional to 316,069.47, 436,173.06 and 172,830.54 is: 238,504.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,069.47 : 436,173.06 = 172,830.54 : x
  2. Step 2: Convert to fraction form
    316,069.47/436,173.06 = 172,830.54/x
  3. Step 3: Cross multiply
    316,069.47x = 436,173.06 × 172,830.54
  4. Step 4: Simplify right side
    316,069.47x = 75,384,025,493.25
  5. Step 5: Solve for x
    x = 75,384,025,493.25/316,069.47
  6. Step 6: Final answer
    x = 238,504.61

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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.