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Finding the Fourth Proportional to 456,117.28, 629,541.77 and 265,240.78

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Solution

The fourth proportional to 456,117.28, 629,541.77 and 265,240.78 is: 366,090.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,117.28 : 629,541.77 = 265,240.78 : x
  2. Step 2: Convert to fraction form
    456,117.28/629,541.77 = 265,240.78/x
  3. Step 3: Cross multiply
    456,117.28x = 629,541.77 × 265,240.78
  4. Step 4: Simplify right side
    456,117.28x = 166,980,147,217.32
  5. Step 5: Solve for x
    x = 166,980,147,217.32/456,117.28
  6. Step 6: Final answer
    x = 366,090.38

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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.