Home / 379,563.04-523,849.08-218,414.80

Finding the Fourth Proportional to 379,563.04, 523,849.08 and 218,414.80

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Solution

The fourth proportional to 379,563.04, 523,849.08 and 218,414.80 is: 301,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,563.04 : 523,849.08 = 218,414.80 : x
  2. Step 2: Convert to fraction form
    379,563.04/523,849.08 = 218,414.80/x
  3. Step 3: Cross multiply
    379,563.04x = 523,849.08 × 218,414.80
  4. Step 4: Simplify right side
    379,563.04x = 114,416,392,038.38
  5. Step 5: Solve for x
    x = 114,416,392,038.38/379,563.04
  6. Step 6: Final answer
    x = 301,442.40

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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.