Home / 266,139.60-398,626.20-236,590.80

Finding the Fourth Proportional to 266,139.60, 398,626.20 and 236,590.80

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Solution

The fourth proportional to 266,139.60, 398,626.20 and 236,590.80 is: 354,367.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,139.60 : 398,626.20 = 236,590.80 : x
  2. Step 2: Convert to fraction form
    266,139.60/398,626.20 = 236,590.80/x
  3. Step 3: Cross multiply
    266,139.60x = 398,626.20 × 236,590.80
  4. Step 4: Simplify right side
    266,139.60x = 94,311,291,558.96
  5. Step 5: Solve for x
    x = 94,311,291,558.96/266,139.60
  6. Step 6: Final answer
    x = 354,367.75

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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.