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Finding the Fourth Proportional to 260,837.94, 391,224.24 and 83,330.22

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Solution

The fourth proportional to 260,837.94, 391,224.24 and 83,330.22 is: 124,984.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,837.94 : 391,224.24 = 83,330.22 : x
  2. Step 2: Convert to fraction form
    260,837.94/391,224.24 = 83,330.22/x
  3. Step 3: Cross multiply
    260,837.94x = 391,224.24 × 83,330.22
  4. Step 4: Simplify right side
    260,837.94x = 32,600,801,988.53
  5. Step 5: Solve for x
    x = 32,600,801,988.53/260,837.94
  6. Step 6: Final answer
    x = 124,984.89

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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.