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Finding the Fourth Proportional to 329,903.40, 494,855.10 and 282,664.20

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Solution

The fourth proportional to 329,903.40, 494,855.10 and 282,664.20 is: 423,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,903.40 : 494,855.10 = 282,664.20 : x
  2. Step 2: Convert to fraction form
    329,903.40/494,855.10 = 282,664.20/x
  3. Step 3: Cross multiply
    329,903.40x = 494,855.10 × 282,664.20
  4. Step 4: Simplify right side
    329,903.40x = 139,877,820,957.42
  5. Step 5: Solve for x
    x = 139,877,820,957.42/329,903.40
  6. Step 6: Final answer
    x = 423,996.30

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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.