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Finding the Fourth Proportional to 403,843.65, 557,301.64 and 222,557.01

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Solution

The fourth proportional to 403,843.65, 557,301.64 and 222,557.01 is: 307,127.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,843.65 : 557,301.64 = 222,557.01 : x
  2. Step 2: Convert to fraction form
    403,843.65/557,301.64 = 222,557.01/x
  3. Step 3: Cross multiply
    403,843.65x = 557,301.64 × 222,557.01
  4. Step 4: Simplify right side
    403,843.65x = 124,031,386,666.50
  5. Step 5: Solve for x
    x = 124,031,386,666.50/403,843.65
  6. Step 6: Final answer
    x = 307,127.24

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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.