Home / 401,564.06-554,158.38-231,798.20

Finding the Fourth Proportional to 401,564.06, 554,158.38 and 231,798.20

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Solution

The fourth proportional to 401,564.06, 554,158.38 and 231,798.20 is: 319,881.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,564.06 : 554,158.38 = 231,798.20 : x
  2. Step 2: Convert to fraction form
    401,564.06/554,158.38 = 231,798.20/x
  3. Step 3: Cross multiply
    401,564.06x = 554,158.38 × 231,798.20
  4. Step 4: Simplify right side
    401,564.06x = 128,452,914,998.92
  5. Step 5: Solve for x
    x = 128,452,914,998.92/401,564.06
  6. Step 6: Final answer
    x = 319,881.50

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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.