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Finding the Fourth Proportional to 521,451.96, 782,262.54 and 161,538.72

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Solution

The fourth proportional to 521,451.96, 782,262.54 and 161,538.72 is: 242,334.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,451.96 : 782,262.54 = 161,538.72 : x
  2. Step 2: Convert to fraction form
    521,451.96/782,262.54 = 161,538.72/x
  3. Step 3: Cross multiply
    521,451.96x = 782,262.54 × 161,538.72
  4. Step 4: Simplify right side
    521,451.96x = 126,365,689,415.55
  5. Step 5: Solve for x
    x = 126,365,689,415.55/521,451.96
  6. Step 6: Final answer
    x = 242,334.29

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1.5x scale

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.