Home / 316,219.05-436,392.70-172,975.82

Finding the Fourth Proportional to 316,219.05, 436,392.70 and 172,975.82

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Solution

The fourth proportional to 316,219.05, 436,392.70 and 172,975.82 is: 238,712.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,219.05 : 436,392.70 = 172,975.82 : x
  2. Step 2: Convert to fraction form
    316,219.05/436,392.70 = 172,975.82/x
  3. Step 3: Cross multiply
    316,219.05x = 436,392.70 × 172,975.82
  4. Step 4: Simplify right side
    316,219.05x = 75,485,382,942.55
  5. Step 5: Solve for x
    x = 75,485,382,942.55/316,219.05
  6. Step 6: Final answer
    x = 238,712.32

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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.