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Finding the Fourth Proportional to 366,919.30, 549,698.55 and 208,677.70

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Solution

The fourth proportional to 366,919.30, 549,698.55 and 208,677.70 is: 312,629.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,919.30 : 549,698.55 = 208,677.70 : x
  2. Step 2: Convert to fraction form
    366,919.30/549,698.55 = 208,677.70/x
  3. Step 3: Cross multiply
    366,919.30x = 549,698.55 × 208,677.70
  4. Step 4: Simplify right side
    366,919.30x = 114,709,829,107.34
  5. Step 5: Solve for x
    x = 114,709,829,107.34/366,919.30
  6. Step 6: Final answer
    x = 312,629.59

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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.