Home / 316,453.40-436,688.79-173,185.73

Finding the Fourth Proportional to 316,453.40, 436,688.79 and 173,185.73

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Solution

The fourth proportional to 316,453.40, 436,688.79 and 173,185.73 is: 238,987.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,453.40 : 436,688.79 = 173,185.73 : x
  2. Step 2: Convert to fraction form
    316,453.40/436,688.79 = 173,185.73/x
  3. Step 3: Cross multiply
    316,453.40x = 436,688.79 × 173,185.73
  4. Step 4: Simplify right side
    316,453.40x = 75,628,266,878.97
  5. Step 5: Solve for x
    x = 75,628,266,878.97/316,453.40
  6. Step 6: Final answer
    x = 238,987.06

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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.