Home / 316,668.48-436,986.30-173,400.85

Finding the Fourth Proportional to 316,668.48, 436,986.30 and 173,400.85

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Solution

The fourth proportional to 316,668.48, 436,986.30 and 173,400.85 is: 239,284.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,668.48 : 436,986.30 = 173,400.85 : x
  2. Step 2: Convert to fraction form
    316,668.48/436,986.30 = 173,400.85/x
  3. Step 3: Cross multiply
    316,668.48x = 436,986.30 × 173,400.85
  4. Step 4: Simplify right side
    316,668.48x = 75,773,795,858.36
  5. Step 5: Solve for x
    x = 75,773,795,858.36/316,668.48
  6. Step 6: Final answer
    x = 239,284.30

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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.