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Finding the Fourth Proportional to 260,848, 391,007.04 and 102,859.52

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Solution

The fourth proportional to 260,848, 391,007.04 and 102,859.52 is: 154,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,848 : 391,007.04 = 102,859.52 : x
  2. Step 2: Convert to fraction form
    260,848/391,007.04 = 102,859.52/x
  3. Step 3: Cross multiply
    260,848x = 391,007.04 × 102,859.52
  4. Step 4: Simplify right side
    260,848x = 40,218,796,451.02
  5. Step 5: Solve for x
    x = 40,218,796,451.02/260,848
  6. Step 6: Final answer
    x = 154,184.80

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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.