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Finding the Fourth Proportional to 223,214.10, 334,821.15 and 139,233.30

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Solution

The fourth proportional to 223,214.10, 334,821.15 and 139,233.30 is: 208,849.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,214.10 : 334,821.15 = 139,233.30 : x
  2. Step 2: Convert to fraction form
    223,214.10/334,821.15 = 139,233.30/x
  3. Step 3: Cross multiply
    223,214.10x = 334,821.15 × 139,233.30
  4. Step 4: Simplify right side
    223,214.10x = 46,618,253,624.30
  5. Step 5: Solve for x
    x = 46,618,253,624.30/223,214.10
  6. Step 6: Final answer
    x = 208,849.95

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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.