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Finding the Fourth Proportional to 329,997.60, 494,121.60 and 260,013.60

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Solution

The fourth proportional to 329,997.60, 494,121.60 and 260,013.60 is: 389,331.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,997.60 : 494,121.60 = 260,013.60 : x
  2. Step 2: Convert to fraction form
    329,997.60/494,121.60 = 260,013.60/x
  3. Step 3: Cross multiply
    329,997.60x = 494,121.60 × 260,013.60
  4. Step 4: Simplify right side
    329,997.60x = 128,478,336,053.76
  5. Step 5: Solve for x
    x = 128,478,336,053.76/329,997.60
  6. Step 6: Final answer
    x = 389,331.12

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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.