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Finding the Fourth Proportional to 404,298.64, 557,945.56 and 220,547.28

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Solution

The fourth proportional to 404,298.64, 557,945.56 and 220,547.28 is: 304,362.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,298.64 : 557,945.56 = 220,547.28 : x
  2. Step 2: Convert to fraction form
    404,298.64/557,945.56 = 220,547.28/x
  3. Step 3: Cross multiply
    404,298.64x = 557,945.56 × 220,547.28
  4. Step 4: Simplify right side
    404,298.64x = 123,053,375,646.08
  5. Step 5: Solve for x
    x = 123,053,375,646.08/404,298.64
  6. Step 6: Final answer
    x = 304,362.58

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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.