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Finding the Fourth Proportional to 291,754.64, 437,632 and 92,090.64

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Solution

The fourth proportional to 291,754.64, 437,632 and 92,090.64 is: 138,135.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,754.64 : 437,632 = 92,090.64 : x
  2. Step 2: Convert to fraction form
    291,754.64/437,632 = 92,090.64/x
  3. Step 3: Cross multiply
    291,754.64x = 437,632 × 92,090.64
  4. Step 4: Simplify right side
    291,754.64x = 40,301,810,964.48
  5. Step 5: Solve for x
    x = 40,301,810,964.48/291,754.64
  6. Step 6: Final answer
    x = 138,135.97

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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.