Home / 387,749.25-535,093.97-217,984.59

Finding the Fourth Proportional to 387,749.25, 535,093.97 and 217,984.59

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Solution

The fourth proportional to 387,749.25, 535,093.97 and 217,984.59 is: 300,818.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,749.25 : 535,093.97 = 217,984.59 : x
  2. Step 2: Convert to fraction form
    387,749.25/535,093.97 = 217,984.59/x
  3. Step 3: Cross multiply
    387,749.25x = 535,093.97 × 217,984.59
  4. Step 4: Simplify right side
    387,749.25x = 116,642,238,572.00
  5. Step 5: Solve for x
    x = 116,642,238,572.00/387,749.25
  6. Step 6: Final answer
    x = 300,818.73

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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.