Home / 379,176.76-523,291.49-218,082.34

Finding the Fourth Proportional to 379,176.76, 523,291.49 and 218,082.34

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Solution

The fourth proportional to 379,176.76, 523,291.49 and 218,082.34 is: 300,969.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,176.76 : 523,291.49 = 218,082.34 : x
  2. Step 2: Convert to fraction form
    379,176.76/523,291.49 = 218,082.34/x
  3. Step 3: Cross multiply
    379,176.76x = 523,291.49 × 218,082.34
  4. Step 4: Simplify right side
    379,176.76x = 114,120,632,641.29
  5. Step 5: Solve for x
    x = 114,120,632,641.29/379,176.76
  6. Step 6: Final answer
    x = 300,969.48

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1.5x scale

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.