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Finding the Fourth Proportional to 245,843.73, 368,822.64 and 77,359.68

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Solution

The fourth proportional to 245,843.73, 368,822.64 and 77,359.68 is: 116,057.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,843.73 : 368,822.64 = 77,359.68 : x
  2. Step 2: Convert to fraction form
    245,843.73/368,822.64 = 77,359.68/x
  3. Step 3: Cross multiply
    245,843.73x = 368,822.64 × 77,359.68
  4. Step 4: Simplify right side
    245,843.73x = 28,532,001,407.16
  5. Step 5: Solve for x
    x = 28,532,001,407.16/245,843.73
  6. Step 6: Final answer
    x = 116,057.47

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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.