Home / 379,313.98-523,432.29-218,171.74

Finding the Fourth Proportional to 379,313.98, 523,432.29 and 218,171.74

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Solution

The fourth proportional to 379,313.98, 523,432.29 and 218,171.74 is: 301,064.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,313.98 : 523,432.29 = 218,171.74 : x
  2. Step 2: Convert to fraction form
    379,313.98/523,432.29 = 218,171.74/x
  3. Step 3: Cross multiply
    379,313.98x = 523,432.29 × 218,171.74
  4. Step 4: Simplify right side
    379,313.98x = 114,198,132,172.90
  5. Step 5: Solve for x
    x = 114,198,132,172.90/379,313.98
  6. Step 6: Final answer
    x = 301,064.92

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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.