Home / 385,579.37-532,099.38-215,813.49

Finding the Fourth Proportional to 385,579.37, 532,099.38 and 215,813.49

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Solution

The fourth proportional to 385,579.37, 532,099.38 and 215,813.49 is: 297,822.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,579.37 : 532,099.38 = 215,813.49 : x
  2. Step 2: Convert to fraction form
    385,579.37/532,099.38 = 215,813.49/x
  3. Step 3: Cross multiply
    385,579.37x = 532,099.38 × 215,813.49
  4. Step 4: Simplify right side
    385,579.37x = 114,834,224,224.64
  5. Step 5: Solve for x
    x = 114,834,224,224.64/385,579.37
  6. Step 6: Final answer
    x = 297,822.53

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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.