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Finding the Fourth Proportional to 328,488, 453,313.44 and 177,585

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Solution

The fourth proportional to 328,488, 453,313.44 and 177,585 is: 245,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,488 : 453,313.44 = 177,585 : x
  2. Step 2: Convert to fraction form
    328,488/453,313.44 = 177,585/x
  3. Step 3: Cross multiply
    328,488x = 453,313.44 × 177,585
  4. Step 4: Simplify right side
    328,488x = 80,501,667,242.40
  5. Step 5: Solve for x
    x = 80,501,667,242.40/328,488
  6. Step 6: Final answer
    x = 245,067.30

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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.