Home / 386,898.48-533,969.10-217,132.59

Finding the Fourth Proportional to 386,898.48, 533,969.10 and 217,132.59

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Solution

The fourth proportional to 386,898.48, 533,969.10 and 217,132.59 is: 299,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,898.48 : 533,969.10 = 217,132.59 : x
  2. Step 2: Convert to fraction form
    386,898.48/533,969.10 = 217,132.59/x
  3. Step 3: Cross multiply
    386,898.48x = 533,969.10 × 217,132.59
  4. Step 4: Simplify right side
    386,898.48x = 115,942,093,662.97
  5. Step 5: Solve for x
    x = 115,942,093,662.97/386,898.48
  6. Step 6: Final answer
    x = 299,670.58

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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.