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Finding the Fourth Proportional to 321,840.70, 482,761.05 and 204,034.30

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Solution

The fourth proportional to 321,840.70, 482,761.05 and 204,034.30 is: 306,051.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,840.70 : 482,761.05 = 204,034.30 : x
  2. Step 2: Convert to fraction form
    321,840.70/482,761.05 = 204,034.30/x
  3. Step 3: Cross multiply
    321,840.70x = 482,761.05 × 204,034.30
  4. Step 4: Simplify right side
    321,840.70x = 98,499,812,904.02
  5. Step 5: Solve for x
    x = 98,499,812,904.02/321,840.70
  6. Step 6: Final answer
    x = 306,051.45

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1.5x scale

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.