Home / 401,119.26-553,796.19-258,127.74

Finding the Fourth Proportional to 401,119.26, 553,796.19 and 258,127.74

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Solution

The fourth proportional to 401,119.26, 553,796.19 and 258,127.74 is: 356,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,119.26 : 553,796.19 = 258,127.74 : x
  2. Step 2: Convert to fraction form
    401,119.26/553,796.19 = 258,127.74/x
  3. Step 3: Cross multiply
    401,119.26x = 553,796.19 × 258,127.74
  4. Step 4: Simplify right side
    401,119.26x = 142,950,158,945.31
  5. Step 5: Solve for x
    x = 142,950,158,945.31/401,119.26
  6. Step 6: Final answer
    x = 356,378.20

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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.