Home / 386,867.07-533,914.89-217,101.87

Finding the Fourth Proportional to 386,867.07, 533,914.89 and 217,101.87

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Solution

The fourth proportional to 386,867.07, 533,914.89 and 217,101.87 is: 299,622.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,867.07 : 533,914.89 = 217,101.87 : x
  2. Step 2: Convert to fraction form
    386,867.07/533,914.89 = 217,101.87/x
  3. Step 3: Cross multiply
    386,867.07x = 533,914.89 × 217,101.87
  4. Step 4: Simplify right side
    386,867.07x = 115,913,921,039.84
  5. Step 5: Solve for x
    x = 115,913,921,039.84/386,867.07
  6. Step 6: Final answer
    x = 299,622.09

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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.