Home / 316,431.87-436,659.15-173,164.23

Finding the Fourth Proportional to 316,431.87, 436,659.15 and 173,164.23

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Solution

The fourth proportional to 316,431.87, 436,659.15 and 173,164.23 is: 238,957.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,431.87 : 436,659.15 = 173,164.23 : x
  2. Step 2: Convert to fraction form
    316,431.87/436,659.15 = 173,164.23/x
  3. Step 3: Cross multiply
    316,431.87x = 436,659.15 × 173,164.23
  4. Step 4: Simplify right side
    316,431.87x = 75,613,746,131.57
  5. Step 5: Solve for x
    x = 75,613,746,131.57/316,431.87
  6. Step 6: Final answer
    x = 238,957.43

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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.