Home / 379,529.28-523,655.52-216,148.80

Finding the Fourth Proportional to 379,529.28, 523,655.52 and 216,148.80

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Solution

The fourth proportional to 379,529.28, 523,655.52 and 216,148.80 is: 298,231.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,529.28 : 523,655.52 = 216,148.80 : x
  2. Step 2: Convert to fraction form
    379,529.28/523,655.52 = 216,148.80/x
  3. Step 3: Cross multiply
    379,529.28x = 523,655.52 × 216,148.80
  4. Step 4: Simplify right side
    379,529.28x = 113,187,512,261.38
  5. Step 5: Solve for x
    x = 113,187,512,261.38/379,529.28
  6. Step 6: Final answer
    x = 298,231.30

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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.