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Finding the Fourth Proportional to 317,372.69, 437,974.29 and 181,409.55

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Solution

The fourth proportional to 317,372.69, 437,974.29 and 181,409.55 is: 250,345.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,372.69 : 437,974.29 = 181,409.55 : x
  2. Step 2: Convert to fraction form
    317,372.69/437,974.29 = 181,409.55/x
  3. Step 3: Cross multiply
    317,372.69x = 437,974.29 × 181,409.55
  4. Step 4: Simplify right side
    317,372.69x = 79,452,718,860.47
  5. Step 5: Solve for x
    x = 79,452,718,860.47/317,372.69
  6. Step 6: Final answer
    x = 250,345.17

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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.