Home / 316,242.63-436,418.27-172,999.60

Finding the Fourth Proportional to 316,242.63, 436,418.27 and 172,999.60

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Solution

The fourth proportional to 316,242.63, 436,418.27 and 172,999.60 is: 238,741.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,242.63 : 436,418.27 = 172,999.60 : x
  2. Step 2: Convert to fraction form
    316,242.63/436,418.27 = 172,999.60/x
  3. Step 3: Cross multiply
    316,242.63x = 436,418.27 × 172,999.60
  4. Step 4: Simplify right side
    316,242.63x = 75,500,186,142.69
  5. Step 5: Solve for x
    x = 75,500,186,142.69/316,242.63
  6. Step 6: Final answer
    x = 238,741.33

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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.