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Finding the Fourth Proportional to 347,896.60, 521,942.10 and 170,409.40

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Solution

The fourth proportional to 347,896.60, 521,942.10 and 170,409.40 is: 255,661.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,896.60 : 521,942.10 = 170,409.40 : x
  2. Step 2: Convert to fraction form
    347,896.60/521,942.10 = 170,409.40/x
  3. Step 3: Cross multiply
    347,896.60x = 521,942.10 × 170,409.40
  4. Step 4: Simplify right side
    347,896.60x = 88,943,840,095.74
  5. Step 5: Solve for x
    x = 88,943,840,095.74/347,896.60
  6. Step 6: Final answer
    x = 255,661.71

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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.