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Finding the Fourth Proportional to 329,999.10, 494,123.85 and 260,015.10

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Solution

The fourth proportional to 329,999.10, 494,123.85 and 260,015.10 is: 389,333.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,999.10 : 494,123.85 = 260,015.10 : x
  2. Step 2: Convert to fraction form
    329,999.10/494,123.85 = 260,015.10/x
  3. Step 3: Cross multiply
    329,999.10x = 494,123.85 × 260,015.10
  4. Step 4: Simplify right side
    329,999.10x = 128,479,662,270.14
  5. Step 5: Solve for x
    x = 128,479,662,270.14/329,999.10
  6. Step 6: Final answer
    x = 389,333.37

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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.