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Finding the Fourth Proportional to 260,999.68, 391,548.72 and 83,459.02

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Solution

The fourth proportional to 260,999.68, 391,548.72 and 83,459.02 is: 125,204.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,999.68 : 391,548.72 = 83,459.02 : x
  2. Step 2: Convert to fraction form
    260,999.68/391,548.72 = 83,459.02/x
  3. Step 3: Cross multiply
    260,999.68x = 391,548.72 × 83,459.02
  4. Step 4: Simplify right side
    260,999.68x = 32,678,272,453.45
  5. Step 5: Solve for x
    x = 32,678,272,453.45/260,999.68
  6. Step 6: Final answer
    x = 125,204.26

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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.