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Finding the Fourth Proportional to 392,008.54, 540,906.21 and 230,895.66

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Solution

The fourth proportional to 392,008.54, 540,906.21 and 230,895.66 is: 318,597.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,008.54 : 540,906.21 = 230,895.66 : x
  2. Step 2: Convert to fraction form
    392,008.54/540,906.21 = 230,895.66/x
  3. Step 3: Cross multiply
    392,008.54x = 540,906.21 × 230,895.66
  4. Step 4: Simplify right side
    392,008.54x = 124,892,896,356.05
  5. Step 5: Solve for x
    x = 124,892,896,356.05/392,008.54
  6. Step 6: Final answer
    x = 318,597.39

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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.