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Finding the Fourth Proportional to 345,089.64, 476,234.28 and 187,936.12

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Solution

The fourth proportional to 345,089.64, 476,234.28 and 187,936.12 is: 259,357.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,089.64 : 476,234.28 = 187,936.12 : x
  2. Step 2: Convert to fraction form
    345,089.64/476,234.28 = 187,936.12/x
  3. Step 3: Cross multiply
    345,089.64x = 476,234.28 × 187,936.12
  4. Step 4: Simplify right side
    345,089.64x = 89,501,622,794.19
  5. Step 5: Solve for x
    x = 89,501,622,794.19/345,089.64
  6. Step 6: Final answer
    x = 259,357.61

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1.5x scale

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.