Home / 316,176.09-436,326.39-172,933.07

Finding the Fourth Proportional to 316,176.09, 436,326.39 and 172,933.07

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Solution

The fourth proportional to 316,176.09, 436,326.39 and 172,933.07 is: 238,649.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,176.09 : 436,326.39 = 172,933.07 : x
  2. Step 2: Convert to fraction form
    316,176.09/436,326.39 = 172,933.07/x
  3. Step 3: Cross multiply
    316,176.09x = 436,326.39 × 172,933.07
  4. Step 4: Simplify right side
    316,176.09x = 75,455,259,963.09
  5. Step 5: Solve for x
    x = 75,455,259,963.09/316,176.09
  6. Step 6: Final answer
    x = 238,649.48

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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.