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Finding the Fourth Proportional to 366,909.40, 549,845.70 and 255,971.80

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Solution

The fourth proportional to 366,909.40, 549,845.70 and 255,971.80 is: 383,596.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,909.40 : 549,845.70 = 255,971.80 : x
  2. Step 2: Convert to fraction form
    366,909.40/549,845.70 = 255,971.80/x
  3. Step 3: Cross multiply
    366,909.40x = 549,845.70 × 255,971.80
  4. Step 4: Simplify right side
    366,909.40x = 140,744,993,551.26
  5. Step 5: Solve for x
    x = 140,744,993,551.26/366,909.40
  6. Step 6: Final answer
    x = 383,596.04

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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.