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Finding the Fourth Proportional to 543,650.92, 815,412.96 and 144,322.72

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Solution

The fourth proportional to 543,650.92, 815,412.96 and 144,322.72 is: 216,467.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,650.92 : 815,412.96 = 144,322.72 : x
  2. Step 2: Convert to fraction form
    543,650.92/815,412.96 = 144,322.72/x
  3. Step 3: Cross multiply
    543,650.92x = 815,412.96 × 144,322.72
  4. Step 4: Simplify right side
    543,650.92x = 117,682,616,310.45
  5. Step 5: Solve for x
    x = 117,682,616,310.45/543,650.92
  6. Step 6: Final answer
    x = 216,467.24

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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.