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Finding the Fourth Proportional to 194,381.28, 291,636.72 and 69,732

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Solution

The fourth proportional to 194,381.28, 291,636.72 and 69,732 is: 104,621.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,381.28 : 291,636.72 = 69,732 : x
  2. Step 2: Convert to fraction form
    194,381.28/291,636.72 = 69,732/x
  3. Step 3: Cross multiply
    194,381.28x = 291,636.72 × 69,732
  4. Step 4: Simplify right side
    194,381.28x = 20,336,411,759.04
  5. Step 5: Solve for x
    x = 20,336,411,759.04/194,381.28
  6. Step 6: Final answer
    x = 104,621.25

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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.