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Finding the Fourth Proportional to 517,279.68, 775,992.33 and 180,271.89

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Solution

The fourth proportional to 517,279.68, 775,992.33 and 180,271.89 is: 270,433.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,279.68 : 775,992.33 = 180,271.89 : x
  2. Step 2: Convert to fraction form
    517,279.68/775,992.33 = 180,271.89/x
  3. Step 3: Cross multiply
    517,279.68x = 775,992.33 × 180,271.89
  4. Step 4: Simplify right side
    517,279.68x = 139,889,603,954.60
  5. Step 5: Solve for x
    x = 139,889,603,954.60/517,279.68
  6. Step 6: Final answer
    x = 270,433.21

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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.