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Finding the Fourth Proportional to 457,659.26, 631,568.03 and 256,455.26

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Solution

The fourth proportional to 457,659.26, 631,568.03 and 256,455.26 is: 353,907.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,659.26 : 631,568.03 = 256,455.26 : x
  2. Step 2: Convert to fraction form
    457,659.26/631,568.03 = 256,455.26/x
  3. Step 3: Cross multiply
    457,659.26x = 631,568.03 × 256,455.26
  4. Step 4: Simplify right side
    457,659.26x = 161,968,943,341.34
  5. Step 5: Solve for x
    x = 161,968,943,341.34/457,659.26
  6. Step 6: Final answer
    x = 353,907.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.