Home / 401,749.30-554,412.51-220,464.28

Finding the Fourth Proportional to 401,749.30, 554,412.51 and 220,464.28

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Solution

The fourth proportional to 401,749.30, 554,412.51 and 220,464.28 is: 304,239.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,749.30 : 554,412.51 = 220,464.28 : x
  2. Step 2: Convert to fraction form
    401,749.30/554,412.51 = 220,464.28/x
  3. Step 3: Cross multiply
    401,749.30x = 554,412.51 × 220,464.28
  4. Step 4: Simplify right side
    401,749.30x = 122,228,154,840.14
  5. Step 5: Solve for x
    x = 122,228,154,840.14/401,749.30
  6. Step 6: Final answer
    x = 304,239.87

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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.