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Finding the Fourth Proportional to 368,247.32, 505,979.02 and 292,664.60

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Solution

The fourth proportional to 368,247.32, 505,979.02 and 292,664.60 is: 402,126.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,247.32 : 505,979.02 = 292,664.60 : x
  2. Step 2: Convert to fraction form
    368,247.32/505,979.02 = 292,664.60/x
  3. Step 3: Cross multiply
    368,247.32x = 505,979.02 × 292,664.60
  4. Step 4: Simplify right side
    368,247.32x = 148,082,147,496.69
  5. Step 5: Solve for x
    x = 148,082,147,496.69/368,247.32
  6. Step 6: Final answer
    x = 402,126.88

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.