Home / 316,170.72-436,297.32-172,931.94

Finding the Fourth Proportional to 316,170.72, 436,297.32 and 172,931.94

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Solution

The fourth proportional to 316,170.72, 436,297.32 and 172,931.94 is: 238,636.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,170.72 : 436,297.32 = 172,931.94 : x
  2. Step 2: Convert to fraction form
    316,170.72/436,297.32 = 172,931.94/x
  3. Step 3: Cross multiply
    316,170.72x = 436,297.32 × 172,931.94
  4. Step 4: Simplify right side
    316,170.72x = 75,449,741,964.40
  5. Step 5: Solve for x
    x = 75,449,741,964.40/316,170.72
  6. Step 6: Final answer
    x = 238,636.08

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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.