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Finding the Fourth Proportional to 366,511.84, 549,665.40 and 129,790.96

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Solution

The fourth proportional to 366,511.84, 549,665.40 and 129,790.96 is: 194,650.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,511.84 : 549,665.40 = 129,790.96 : x
  2. Step 2: Convert to fraction form
    366,511.84/549,665.40 = 129,790.96/x
  3. Step 3: Cross multiply
    366,511.84x = 549,665.40 × 129,790.96
  4. Step 4: Simplify right side
    366,511.84x = 71,341,599,944.78
  5. Step 5: Solve for x
    x = 71,341,599,944.78/366,511.84
  6. Step 6: Final answer
    x = 194,650.19

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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.