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Finding the Fourth Proportional to 283,375, 391,051.56 and 156,051.64

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Solution

The fourth proportional to 283,375, 391,051.56 and 156,051.64 is: 215,347.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,375 : 391,051.56 = 156,051.64 : x
  2. Step 2: Convert to fraction form
    283,375/391,051.56 = 156,051.64/x
  3. Step 3: Cross multiply
    283,375x = 391,051.56 × 156,051.64
  4. Step 4: Simplify right side
    283,375x = 61,024,237,262.56
  5. Step 5: Solve for x
    x = 61,024,237,262.56/283,375
  6. Step 6: Final answer
    x = 215,347.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.