Home / 316,185.12-436,329.36-172,944.72

Finding the Fourth Proportional to 316,185.12, 436,329.36 and 172,944.72

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Solution

The fourth proportional to 316,185.12, 436,329.36 and 172,944.72 is: 238,660.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,185.12 : 436,329.36 = 172,944.72 : x
  2. Step 2: Convert to fraction form
    316,185.12/436,329.36 = 172,944.72/x
  3. Step 3: Cross multiply
    316,185.12x = 436,329.36 × 172,944.72
  4. Step 4: Simplify right side
    316,185.12x = 75,460,858,992.98
  5. Step 5: Solve for x
    x = 75,460,858,992.98/316,185.12
  6. Step 6: Final answer
    x = 238,660.37

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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.