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Finding the Fourth Proportional to 356,000.94, 491,336.28 and 203,039.46

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Solution

The fourth proportional to 356,000.94, 491,336.28 and 203,039.46 is: 280,225.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,000.94 : 491,336.28 = 203,039.46 : x
  2. Step 2: Convert to fraction form
    356,000.94/491,336.28 = 203,039.46/x
  3. Step 3: Cross multiply
    356,000.94x = 491,336.28 × 203,039.46
  4. Step 4: Simplify right side
    356,000.94x = 99,760,652,969.61
  5. Step 5: Solve for x
    x = 99,760,652,969.61/356,000.94
  6. Step 6: Final answer
    x = 280,225.81

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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.