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Finding the Fourth Proportional to 394,267.68, 544,089.60 and 215,419.68

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Solution

The fourth proportional to 394,267.68, 544,089.60 and 215,419.68 is: 297,279.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,267.68 : 544,089.60 = 215,419.68 : x
  2. Step 2: Convert to fraction form
    394,267.68/544,089.60 = 215,419.68/x
  3. Step 3: Cross multiply
    394,267.68x = 544,089.60 × 215,419.68
  4. Step 4: Simplify right side
    394,267.68x = 117,207,607,523.33
  5. Step 5: Solve for x
    x = 117,207,607,523.33/394,267.68
  6. Step 6: Final answer
    x = 297,279.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.