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Finding the Fourth Proportional to 521,842.95, 782,720.69 and 166,761.63

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Solution

The fourth proportional to 521,842.95, 782,720.69 and 166,761.63 is: 250,128.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,842.95 : 782,720.69 = 166,761.63 : x
  2. Step 2: Convert to fraction form
    521,842.95/782,720.69 = 166,761.63/x
  3. Step 3: Cross multiply
    521,842.95x = 782,720.69 × 166,761.63
  4. Step 4: Simplify right side
    521,842.95x = 130,527,777,265.32
  5. Step 5: Solve for x
    x = 130,527,777,265.32/521,842.95
  6. Step 6: Final answer
    x = 250,128.47

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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.