Home / 401,786.64-554,547.60-231,997.68

Finding the Fourth Proportional to 401,786.64, 554,547.60 and 231,997.68

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Solution

The fourth proportional to 401,786.64, 554,547.60 and 231,997.68 is: 320,204.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,786.64 : 554,547.60 = 231,997.68 : x
  2. Step 2: Convert to fraction form
    401,786.64/554,547.60 = 231,997.68/x
  3. Step 3: Cross multiply
    401,786.64x = 554,547.60 × 231,997.68
  4. Step 4: Simplify right side
    401,786.64x = 128,653,756,649.57
  5. Step 5: Solve for x
    x = 128,653,756,649.57/401,786.64
  6. Step 6: Final answer
    x = 320,204.17

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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.