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Finding the Fourth Proportional to 366,039.40, 549,059.10 and 259,751.20

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Solution

The fourth proportional to 366,039.40, 549,059.10 and 259,751.20 is: 389,626.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,039.40 : 549,059.10 = 259,751.20 : x
  2. Step 2: Convert to fraction form
    366,039.40/549,059.10 = 259,751.20/x
  3. Step 3: Cross multiply
    366,039.40x = 549,059.10 × 259,751.20
  4. Step 4: Simplify right side
    366,039.40x = 142,618,760,095.92
  5. Step 5: Solve for x
    x = 142,618,760,095.92/366,039.40
  6. Step 6: Final answer
    x = 389,626.80

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Similar ratio
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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.