Home / 401,461.27-554,023.65-220,171.61

Finding the Fourth Proportional to 401,461.27, 554,023.65 and 220,171.61

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Solution

The fourth proportional to 401,461.27, 554,023.65 and 220,171.61 is: 303,840.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,461.27 : 554,023.65 = 220,171.61 : x
  2. Step 2: Convert to fraction form
    401,461.27/554,023.65 = 220,171.61/x
  3. Step 3: Cross multiply
    401,461.27x = 554,023.65 × 220,171.61
  4. Step 4: Simplify right side
    401,461.27x = 121,980,280,974.53
  5. Step 5: Solve for x
    x = 121,980,280,974.53/401,461.27
  6. Step 6: Final answer
    x = 303,840.72

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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.