Home / 385,979.56-532,672.32-213,916.35

Finding the Fourth Proportional to 385,979.56, 532,672.32 and 213,916.35

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Solution

The fourth proportional to 385,979.56, 532,672.32 and 213,916.35 is: 295,215.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,979.56 : 532,672.32 = 213,916.35 : x
  2. Step 2: Convert to fraction form
    385,979.56/532,672.32 = 213,916.35/x
  3. Step 3: Cross multiply
    385,979.56x = 532,672.32 × 213,916.35
  4. Step 4: Simplify right side
    385,979.56x = 113,947,318,440.43
  5. Step 5: Solve for x
    x = 113,947,318,440.43/385,979.56
  6. Step 6: Final answer
    x = 295,215.94

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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.