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Finding the Fourth Proportional to 275,591.40, 380,036.12 and 259,518.58

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Solution

The fourth proportional to 275,591.40, 380,036.12 and 259,518.58 is: 357,871.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,591.40 : 380,036.12 = 259,518.58 : x
  2. Step 2: Convert to fraction form
    275,591.40/380,036.12 = 259,518.58/x
  3. Step 3: Cross multiply
    275,591.40x = 380,036.12 × 259,518.58
  4. Step 4: Simplify right side
    275,591.40x = 98,626,434,211.11
  5. Step 5: Solve for x
    x = 98,626,434,211.11/275,591.40
  6. Step 6: Final answer
    x = 357,871.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.