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Finding the Fourth Proportional to 322,925.70, 445,699.14 and 213,837.75

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Solution

The fourth proportional to 322,925.70, 445,699.14 and 213,837.75 is: 295,136.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,925.70 : 445,699.14 = 213,837.75 : x
  2. Step 2: Convert to fraction form
    322,925.70/445,699.14 = 213,837.75/x
  3. Step 3: Cross multiply
    322,925.70x = 445,699.14 × 213,837.75
  4. Step 4: Simplify right side
    322,925.70x = 95,307,301,274.54
  5. Step 5: Solve for x
    x = 95,307,301,274.54/322,925.70
  6. Step 6: Final answer
    x = 295,136.93

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1.5x scale

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.