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Finding the Fourth Proportional to 378,034.40, 566,176.80 and 259,061.60

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Solution

The fourth proportional to 378,034.40, 566,176.80 and 259,061.60 is: 387,992.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,034.40 : 566,176.80 = 259,061.60 : x
  2. Step 2: Convert to fraction form
    378,034.40/566,176.80 = 259,061.60/x
  3. Step 3: Cross multiply
    378,034.40x = 566,176.80 × 259,061.60
  4. Step 4: Simplify right side
    378,034.40x = 146,674,667,690.88
  5. Step 5: Solve for x
    x = 146,674,667,690.88/378,034.40
  6. Step 6: Final answer
    x = 387,992.91

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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.