Home / 316,072.32-436,196.01-172,830.84

Finding the Fourth Proportional to 316,072.32, 436,196.01 and 172,830.84

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Solution

The fourth proportional to 316,072.32, 436,196.01 and 172,830.84 is: 238,515.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,072.32 : 436,196.01 = 172,830.84 : x
  2. Step 2: Convert to fraction form
    316,072.32/436,196.01 = 172,830.84/x
  3. Step 3: Cross multiply
    316,072.32x = 436,196.01 × 172,830.84
  4. Step 4: Simplify right side
    316,072.32x = 75,388,122,812.95
  5. Step 5: Solve for x
    x = 75,388,122,812.95/316,072.32
  6. Step 6: Final answer
    x = 238,515.42

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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.