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Finding the Fourth Proportional to 245,855.32, 368,491.38 and 105,317.08

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Solution

The fourth proportional to 245,855.32, 368,491.38 and 105,317.08 is: 157,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,855.32 : 368,491.38 = 105,317.08 : x
  2. Step 2: Convert to fraction form
    245,855.32/368,491.38 = 105,317.08/x
  3. Step 3: Cross multiply
    245,855.32x = 368,491.38 × 105,317.08
  4. Step 4: Simplify right side
    245,855.32x = 38,808,436,146.77
  5. Step 5: Solve for x
    x = 38,808,436,146.77/245,855.32
  6. Step 6: Final answer
    x = 157,850.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.