Home / 317,865.65-438,460.04-188,716.52

Finding the Fourth Proportional to 317,865.65, 438,460.04 and 188,716.52

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Solution

The fourth proportional to 317,865.65, 438,460.04 and 188,716.52 is: 260,313.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,865.65 : 438,460.04 = 188,716.52 : x
  2. Step 2: Convert to fraction form
    317,865.65/438,460.04 = 188,716.52/x
  3. Step 3: Cross multiply
    317,865.65x = 438,460.04 × 188,716.52
  4. Step 4: Simplify right side
    317,865.65x = 82,744,649,771.98
  5. Step 5: Solve for x
    x = 82,744,649,771.98/317,865.65
  6. Step 6: Final answer
    x = 260,313.28

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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.