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Finding the Fourth Proportional to 222,666.50, 307,299.21 and 122,083.94

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Solution

The fourth proportional to 222,666.50, 307,299.21 and 122,083.94 is: 168,486.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,666.50 : 307,299.21 = 122,083.94 : x
  2. Step 2: Convert to fraction form
    222,666.50/307,299.21 = 122,083.94/x
  3. Step 3: Cross multiply
    222,666.50x = 307,299.21 × 122,083.94
  4. Step 4: Simplify right side
    222,666.50x = 37,516,298,315.69
  5. Step 5: Solve for x
    x = 37,516,298,315.69/222,666.50
  6. Step 6: Final answer
    x = 168,486.50

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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.