Home / 316,177.09-436,327.77-172,934.07

Finding the Fourth Proportional to 316,177.09, 436,327.77 and 172,934.07

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Solution

The fourth proportional to 316,177.09, 436,327.77 and 172,934.07 is: 238,650.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,177.09 : 436,327.77 = 172,934.07 : x
  2. Step 2: Convert to fraction form
    316,177.09/436,327.77 = 172,934.07/x
  3. Step 3: Cross multiply
    316,177.09x = 436,327.77 × 172,934.07
  4. Step 4: Simplify right side
    316,177.09x = 75,455,937,120.12
  5. Step 5: Solve for x
    x = 75,455,937,120.12/316,177.09
  6. Step 6: Final answer
    x = 238,650.87

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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.