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Finding the Fourth Proportional to 392,576.49, 589,039.65 and 143,200.17

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Solution

The fourth proportional to 392,576.49, 589,039.65 and 143,200.17 is: 214,864.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,576.49 : 589,039.65 = 143,200.17 : x
  2. Step 2: Convert to fraction form
    392,576.49/589,039.65 = 143,200.17/x
  3. Step 3: Cross multiply
    392,576.49x = 589,039.65 × 143,200.17
  4. Step 4: Simplify right side
    392,576.49x = 84,350,578,016.74
  5. Step 5: Solve for x
    x = 84,350,578,016.74/392,576.49
  6. Step 6: Final answer
    x = 214,864.06

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.