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Finding the Fourth Proportional to 366,340.80, 549,511.20 and 206,252.40

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Solution

The fourth proportional to 366,340.80, 549,511.20 and 206,252.40 is: 309,378.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,340.80 : 549,511.20 = 206,252.40 : x
  2. Step 2: Convert to fraction form
    366,340.80/549,511.20 = 206,252.40/x
  3. Step 3: Cross multiply
    366,340.80x = 549,511.20 × 206,252.40
  4. Step 4: Simplify right side
    366,340.80x = 113,338,003,826.88
  5. Step 5: Solve for x
    x = 113,338,003,826.88/366,340.80
  6. Step 6: Final answer
    x = 309,378.60

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1.5x scale

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.