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Finding the Fourth Proportional to 471,145.50, 650,070.90 and 274,881.42

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Solution

The fourth proportional to 471,145.50, 650,070.90 and 274,881.42 is: 379,272.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,145.50 : 650,070.90 = 274,881.42 : x
  2. Step 2: Convert to fraction form
    471,145.50/650,070.90 = 274,881.42/x
  3. Step 3: Cross multiply
    471,145.50x = 650,070.90 × 274,881.42
  4. Step 4: Simplify right side
    471,145.50x = 178,692,412,092.68
  5. Step 5: Solve for x
    x = 178,692,412,092.68/471,145.50
  6. Step 6: Final answer
    x = 379,272.25

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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.