Home / 317,917.13-438,530.93-188,767.89

Finding the Fourth Proportional to 317,917.13, 438,530.93 and 188,767.89

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Solution

The fourth proportional to 317,917.13, 438,530.93 and 188,767.89 is: 260,384.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,917.13 : 438,530.93 = 188,767.89 : x
  2. Step 2: Convert to fraction form
    317,917.13/438,530.93 = 188,767.89/x
  3. Step 3: Cross multiply
    317,917.13x = 438,530.93 × 188,767.89
  4. Step 4: Simplify right side
    317,917.13x = 82,780,558,119.88
  5. Step 5: Solve for x
    x = 82,780,558,119.88/317,917.13
  6. Step 6: Final answer
    x = 260,384.08

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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.