Home / 384,898.44-531,171.18-215,133

Finding the Fourth Proportional to 384,898.44, 531,171.18 and 215,133

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Solution

The fourth proportional to 384,898.44, 531,171.18 and 215,133 is: 296,889.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,898.44 : 531,171.18 = 215,133 : x
  2. Step 2: Convert to fraction form
    384,898.44/531,171.18 = 215,133/x
  3. Step 3: Cross multiply
    384,898.44x = 531,171.18 × 215,133
  4. Step 4: Simplify right side
    384,898.44x = 114,272,449,466.94
  5. Step 5: Solve for x
    x = 114,272,449,466.94/384,898.44
  6. Step 6: Final answer
    x = 296,889.87

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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.