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Finding the Fourth Proportional to 245,663.22, 368,499.36 and 77,180.38

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Solution

The fourth proportional to 245,663.22, 368,499.36 and 77,180.38 is: 115,771.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,663.22 : 368,499.36 = 77,180.38 : x
  2. Step 2: Convert to fraction form
    245,663.22/368,499.36 = 77,180.38/x
  3. Step 3: Cross multiply
    245,663.22x = 368,499.36 × 77,180.38
  4. Step 4: Simplify right side
    245,663.22x = 28,440,920,634.56
  5. Step 5: Solve for x
    x = 28,440,920,634.56/245,663.22
  6. Step 6: Final answer
    x = 115,771.99

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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.