Home / 238,380.35-328,884.62-135,000.45

Finding the Fourth Proportional to 238,380.35, 328,884.62 and 135,000.45

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Solution

The fourth proportional to 238,380.35, 328,884.62 and 135,000.45 is: 186,255.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,380.35 : 328,884.62 = 135,000.45 : x
  2. Step 2: Convert to fraction form
    238,380.35/328,884.62 = 135,000.45/x
  3. Step 3: Cross multiply
    238,380.35x = 328,884.62 × 135,000.45
  4. Step 4: Simplify right side
    238,380.35x = 44,399,571,023.08
  5. Step 5: Solve for x
    x = 44,399,571,023.08/238,380.35
  6. Step 6: Final answer
    x = 186,255.17

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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.