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Finding the Fourth Proportional to 1,445.82, 2,168.73 and 471.93

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Solution

The fourth proportional to 1,445.82, 2,168.73 and 471.93 is: 707.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.82 : 2,168.73 = 471.93 : x
  2. Step 2: Convert to fraction form
    1,445.82/2,168.73 = 471.93/x
  3. Step 3: Cross multiply
    1,445.82x = 2,168.73 × 471.93
  4. Step 4: Simplify right side
    1,445.82x = 1,023,488.75
  5. Step 5: Solve for x
    x = 1,023,488.75/1,445.82
  6. Step 6: Final answer
    x = 707.90

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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.