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Finding the Fourth Proportional to 451,122, 676,681.72 and 201,629.04

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Solution

The fourth proportional to 451,122, 676,681.72 and 201,629.04 is: 302,442.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,122 : 676,681.72 = 201,629.04 : x
  2. Step 2: Convert to fraction form
    451,122/676,681.72 = 201,629.04/x
  3. Step 3: Cross multiply
    451,122x = 676,681.72 × 201,629.04
  4. Step 4: Simplify right side
    451,122x = 136,438,685,589.15
  5. Step 5: Solve for x
    x = 136,438,685,589.15/451,122
  6. Step 6: Final answer
    x = 302,442.99

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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.