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Finding the Fourth Proportional to 516,950.21, 775,425.59 and 161,992.01

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Solution

The fourth proportional to 516,950.21, 775,425.59 and 161,992.01 is: 242,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,950.21 : 775,425.59 = 161,992.01 : x
  2. Step 2: Convert to fraction form
    516,950.21/775,425.59 = 161,992.01/x
  3. Step 3: Cross multiply
    516,950.21x = 775,425.59 × 161,992.01
  4. Step 4: Simplify right side
    516,950.21x = 125,612,751,665.61
  5. Step 5: Solve for x
    x = 125,612,751,665.61/516,950.21
  6. Step 6: Final answer
    x = 242,988.10

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Similar ratio
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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.