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Finding the Fourth Proportional to 401,877, 554,590.26 and 223,029

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Solution

The fourth proportional to 401,877, 554,590.26 and 223,029 is: 307,780.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,877 : 554,590.26 = 223,029 : x
  2. Step 2: Convert to fraction form
    401,877/554,590.26 = 223,029/x
  3. Step 3: Cross multiply
    401,877x = 554,590.26 × 223,029
  4. Step 4: Simplify right side
    401,877x = 123,689,711,097.54
  5. Step 5: Solve for x
    x = 123,689,711,097.54/401,877
  6. Step 6: Final answer
    x = 307,780.02

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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.