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Finding the Fourth Proportional to 344,529.80, 516,794.70 and 328,200.20

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Solution

The fourth proportional to 344,529.80, 516,794.70 and 328,200.20 is: 492,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,529.80 : 516,794.70 = 328,200.20 : x
  2. Step 2: Convert to fraction form
    344,529.80/516,794.70 = 328,200.20/x
  3. Step 3: Cross multiply
    344,529.80x = 516,794.70 × 328,200.20
  4. Step 4: Simplify right side
    344,529.80x = 169,612,123,898.94
  5. Step 5: Solve for x
    x = 169,612,123,898.94/344,529.80
  6. Step 6: Final answer
    x = 492,300.30

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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.