Home / 379,428.37-523,640.92-216,091.75

Finding the Fourth Proportional to 379,428.37, 523,640.92 and 216,091.75

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Solution

The fourth proportional to 379,428.37, 523,640.92 and 216,091.75 is: 298,223.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,428.37 : 523,640.92 = 216,091.75 : x
  2. Step 2: Convert to fraction form
    379,428.37/523,640.92 = 216,091.75/x
  3. Step 3: Cross multiply
    379,428.37x = 523,640.92 × 216,091.75
  4. Step 4: Simplify right side
    379,428.37x = 113,154,482,312.08
  5. Step 5: Solve for x
    x = 113,154,482,312.08/379,428.37
  6. Step 6: Final answer
    x = 298,223.57

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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.