Home / 379,610.04-523,836.88-218,439.07

Finding the Fourth Proportional to 379,610.04, 523,836.88 and 218,439.07

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Solution

The fourth proportional to 379,610.04, 523,836.88 and 218,439.07 is: 301,431.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,610.04 : 523,836.88 = 218,439.07 : x
  2. Step 2: Convert to fraction form
    379,610.04/523,836.88 = 218,439.07/x
  3. Step 3: Cross multiply
    379,610.04x = 523,836.88 × 218,439.07
  4. Step 4: Simplify right side
    379,610.04x = 114,426,440,898.90
  5. Step 5: Solve for x
    x = 114,426,440,898.90/379,610.04
  6. Step 6: Final answer
    x = 301,431.55

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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.