Home / 316,137.08-436,275.57-172,906.34

Finding the Fourth Proportional to 316,137.08, 436,275.57 and 172,906.34

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Solution

The fourth proportional to 316,137.08, 436,275.57 and 172,906.34 is: 238,614.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,137.08 : 436,275.57 = 172,906.34 : x
  2. Step 2: Convert to fraction form
    316,137.08/436,275.57 = 172,906.34/x
  3. Step 3: Cross multiply
    316,137.08x = 436,275.57 × 172,906.34
  4. Step 4: Simplify right side
    316,137.08x = 75,434,809,858.74
  5. Step 5: Solve for x
    x = 75,434,809,858.74/316,137.08
  6. Step 6: Final answer
    x = 238,614.25

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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.