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Finding the Fourth Proportional to 476,319.88, 657,322.86 and 261,481.96

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Solution

The fourth proportional to 476,319.88, 657,322.86 and 261,481.96 is: 360,845.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,319.88 : 657,322.86 = 261,481.96 : x
  2. Step 2: Convert to fraction form
    476,319.88/657,322.86 = 261,481.96/x
  3. Step 3: Cross multiply
    476,319.88x = 657,322.86 × 261,481.96
  4. Step 4: Simplify right side
    476,319.88x = 171,878,069,785.61
  5. Step 5: Solve for x
    x = 171,878,069,785.61/476,319.88
  6. Step 6: Final answer
    x = 360,845.89

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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.