Home / 356,213.20-534,517.80-145,836.40

Finding the Fourth Proportional to 356,213.20, 534,517.80 and 145,836.40

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Solution

The fourth proportional to 356,213.20, 534,517.80 and 145,836.40 is: 218,835.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,213.20 : 534,517.80 = 145,836.40 : x
  2. Step 2: Convert to fraction form
    356,213.20/534,517.80 = 145,836.40/x
  3. Step 3: Cross multiply
    356,213.20x = 534,517.80 × 145,836.40
  4. Step 4: Simplify right side
    356,213.20x = 77,952,151,687.92
  5. Step 5: Solve for x
    x = 77,952,151,687.92/356,213.20
  6. Step 6: Final answer
    x = 218,835.66

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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.