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Finding the Fourth Proportional to 317,144.70, 437,659.34 and 173,907.14

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Solution

The fourth proportional to 317,144.70, 437,659.34 and 173,907.14 is: 239,991.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,144.70 : 437,659.34 = 173,907.14 : x
  2. Step 2: Convert to fraction form
    317,144.70/437,659.34 = 173,907.14/x
  3. Step 3: Cross multiply
    317,144.70x = 437,659.34 × 173,907.14
  4. Step 4: Simplify right side
    317,144.70x = 76,112,081,055.86
  5. Step 5: Solve for x
    x = 76,112,081,055.86/317,144.70
  6. Step 6: Final answer
    x = 239,991.65

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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.