Home / 217,330.88-299,917.69-126,749.66

Finding the Fourth Proportional to 217,330.88, 299,917.69 and 126,749.66

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Solution

The fourth proportional to 217,330.88, 299,917.69 and 126,749.66 is: 174,915.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,330.88 : 299,917.69 = 126,749.66 : x
  2. Step 2: Convert to fraction form
    217,330.88/299,917.69 = 126,749.66/x
  3. Step 3: Cross multiply
    217,330.88x = 299,917.69 × 126,749.66
  4. Step 4: Simplify right side
    217,330.88x = 38,014,463,419.02
  5. Step 5: Solve for x
    x = 38,014,463,419.02/217,330.88
  6. Step 6: Final answer
    x = 174,915.15

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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.