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Finding the Fourth Proportional to 618,235.65, 927,416.34 and 213,375.17

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Solution

The fourth proportional to 618,235.65, 927,416.34 and 213,375.17 is: 320,084.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,235.65 : 927,416.34 = 213,375.17 : x
  2. Step 2: Convert to fraction form
    618,235.65/927,416.34 = 213,375.17/x
  3. Step 3: Cross multiply
    618,235.65x = 927,416.34 × 213,375.17
  4. Step 4: Simplify right side
    618,235.65x = 197,887,614,571.20
  5. Step 5: Solve for x
    x = 197,887,614,571.20/618,235.65
  6. Step 6: Final answer
    x = 320,084.44

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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.