Home / 401,811.41-554,506.63-220,540.25

Finding the Fourth Proportional to 401,811.41, 554,506.63 and 220,540.25

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Solution

The fourth proportional to 401,811.41, 554,506.63 and 220,540.25 is: 304,349.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,811.41 : 554,506.63 = 220,540.25 : x
  2. Step 2: Convert to fraction form
    401,811.41/554,506.63 = 220,540.25/x
  3. Step 3: Cross multiply
    401,811.41x = 554,506.63 × 220,540.25
  4. Step 4: Simplify right side
    401,811.41x = 122,291,031,641.77
  5. Step 5: Solve for x
    x = 122,291,031,641.77/401,811.41
  6. Step 6: Final answer
    x = 304,349.32

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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.