Home / 403,811.61-557,257.63-220,049.85

Finding the Fourth Proportional to 403,811.61, 557,257.63 and 220,049.85

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Solution

The fourth proportional to 403,811.61, 557,257.63 and 220,049.85 is: 303,667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,811.61 : 557,257.63 = 220,049.85 : x
  2. Step 2: Convert to fraction form
    403,811.61/557,257.63 = 220,049.85/x
  3. Step 3: Cross multiply
    403,811.61x = 557,257.63 × 220,049.85
  4. Step 4: Simplify right side
    403,811.61x = 122,624,457,892.86
  5. Step 5: Solve for x
    x = 122,624,457,892.86/403,811.61
  6. Step 6: Final answer
    x = 303,667.49

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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.