Home / 384,932.79-531,160.87-212,827.50

Finding the Fourth Proportional to 384,932.79, 531,160.87 and 212,827.50

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Solution

The fourth proportional to 384,932.79, 531,160.87 and 212,827.50 is: 293,676.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,932.79 : 531,160.87 = 212,827.50 : x
  2. Step 2: Convert to fraction form
    384,932.79/531,160.87 = 212,827.50/x
  3. Step 3: Cross multiply
    384,932.79x = 531,160.87 × 212,827.50
  4. Step 4: Simplify right side
    384,932.79x = 113,045,640,059.93
  5. Step 5: Solve for x
    x = 113,045,640,059.93/384,932.79
  6. Step 6: Final answer
    x = 293,676.31

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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.