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Finding the Fourth Proportional to 219,114, 302,379.33 and 123,622.89

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Solution

The fourth proportional to 219,114, 302,379.33 and 123,622.89 is: 170,600.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,114 : 302,379.33 = 123,622.89 : x
  2. Step 2: Convert to fraction form
    219,114/302,379.33 = 123,622.89/x
  3. Step 3: Cross multiply
    219,114x = 302,379.33 × 123,622.89
  4. Step 4: Simplify right side
    219,114x = 37,381,006,650.86
  5. Step 5: Solve for x
    x = 37,381,006,650.86/219,114
  6. Step 6: Final answer
    x = 170,600.72

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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.