Home / 379,458.28-523,672.58-218,337.80

Finding the Fourth Proportional to 379,458.28, 523,672.58 and 218,337.80

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Solution

The fourth proportional to 379,458.28, 523,672.58 and 218,337.80 is: 301,317.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,458.28 : 523,672.58 = 218,337.80 : x
  2. Step 2: Convert to fraction form
    379,458.28/523,672.58 = 218,337.80/x
  3. Step 3: Cross multiply
    379,458.28x = 523,672.58 × 218,337.80
  4. Step 4: Simplify right side
    379,458.28x = 114,337,519,037.52
  5. Step 5: Solve for x
    x = 114,337,519,037.52/379,458.28
  6. Step 6: Final answer
    x = 301,317.76

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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.