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Finding the Fourth Proportional to 329,720.40, 493,997.40 and 308,725.20

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Solution

The fourth proportional to 329,720.40, 493,997.40 and 308,725.20 is: 462,541.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,720.40 : 493,997.40 = 308,725.20 : x
  2. Step 2: Convert to fraction form
    329,720.40/493,997.40 = 308,725.20/x
  3. Step 3: Cross multiply
    329,720.40x = 493,997.40 × 308,725.20
  4. Step 4: Simplify right side
    329,720.40x = 152,509,446,114.48
  5. Step 5: Solve for x
    x = 152,509,446,114.48/329,720.40
  6. Step 6: Final answer
    x = 462,541.74

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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.