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Finding the Fourth Proportional to 351,527.64, 485,108.54 and 190,382.88

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Solution

The fourth proportional to 351,527.64, 485,108.54 and 190,382.88 is: 262,728.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,527.64 : 485,108.54 = 190,382.88 : x
  2. Step 2: Convert to fraction form
    351,527.64/485,108.54 = 190,382.88/x
  3. Step 3: Cross multiply
    351,527.64x = 485,108.54 × 190,382.88
  4. Step 4: Simplify right side
    351,527.64x = 92,356,360,957.80
  5. Step 5: Solve for x
    x = 92,356,360,957.80/351,527.64
  6. Step 6: Final answer
    x = 262,728.59

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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.