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Finding the Fourth Proportional to 323,486.60, 444,405.26 and 266,721.80

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Solution

The fourth proportional to 323,486.60, 444,405.26 and 266,721.80 is: 366,421.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,486.60 : 444,405.26 = 266,721.80 : x
  2. Step 2: Convert to fraction form
    323,486.60/444,405.26 = 266,721.80/x
  3. Step 3: Cross multiply
    323,486.60x = 444,405.26 × 266,721.80
  4. Step 4: Simplify right side
    323,486.60x = 118,532,570,876.67
  5. Step 5: Solve for x
    x = 118,532,570,876.67/323,486.60
  6. Step 6: Final answer
    x = 366,421.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.