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Finding the Fourth Proportional to 265,822.59, 398,918.59 and 108,051.20

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Solution

The fourth proportional to 265,822.59, 398,918.59 and 108,051.20 is: 162,151.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,822.59 : 398,918.59 = 108,051.20 : x
  2. Step 2: Convert to fraction form
    265,822.59/398,918.59 = 108,051.20/x
  3. Step 3: Cross multiply
    265,822.59x = 398,918.59 × 108,051.20
  4. Step 4: Simplify right side
    265,822.59x = 43,103,631,583.03
  5. Step 5: Solve for x
    x = 43,103,631,583.03/265,822.59
  6. Step 6: Final answer
    x = 162,151.87

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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.