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Finding the Fourth Proportional to 368,257.03, 508,118.50 and 215,265.63

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Solution

The fourth proportional to 368,257.03, 508,118.50 and 215,265.63 is: 297,022.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,257.03 : 508,118.50 = 215,265.63 : x
  2. Step 2: Convert to fraction form
    368,257.03/508,118.50 = 215,265.63/x
  3. Step 3: Cross multiply
    368,257.03x = 508,118.50 × 215,265.63
  4. Step 4: Simplify right side
    368,257.03x = 109,380,451,191.68
  5. Step 5: Solve for x
    x = 109,380,451,191.68/368,257.03
  6. Step 6: Final answer
    x = 297,022.03

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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.