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Finding the Fourth Proportional to 291,504.75, 402,377.32 and 170,684.88

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Solution

The fourth proportional to 291,504.75, 402,377.32 and 170,684.88 is: 235,604.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,504.75 : 402,377.32 = 170,684.88 : x
  2. Step 2: Convert to fraction form
    291,504.75/402,377.32 = 170,684.88/x
  3. Step 3: Cross multiply
    291,504.75x = 402,377.32 × 170,684.88
  4. Step 4: Simplify right side
    291,504.75x = 68,679,724,578.92
  5. Step 5: Solve for x
    x = 68,679,724,578.92/291,504.75
  6. Step 6: Final answer
    x = 235,604.14

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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.