Home / 403,941.96-557,234.91-308,282.58

Finding the Fourth Proportional to 403,941.96, 557,234.91 and 308,282.58

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Solution

The fourth proportional to 403,941.96, 557,234.91 and 308,282.58 is: 425,273.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,941.96 : 557,234.91 = 308,282.58 : x
  2. Step 2: Convert to fraction form
    403,941.96/557,234.91 = 308,282.58/x
  3. Step 3: Cross multiply
    403,941.96x = 557,234.91 × 308,282.58
  4. Step 4: Simplify right side
    403,941.96x = 171,785,815,720.87
  5. Step 5: Solve for x
    x = 171,785,815,720.87/403,941.96
  6. Step 6: Final answer
    x = 425,273.51

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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.