Home / 403,943.22-557,442.75-242,890.50

Finding the Fourth Proportional to 403,943.22, 557,442.75 and 242,890.50

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Solution

The fourth proportional to 403,943.22, 557,442.75 and 242,890.50 is: 335,189.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,943.22 : 557,442.75 = 242,890.50 : x
  2. Step 2: Convert to fraction form
    403,943.22/557,442.75 = 242,890.50/x
  3. Step 3: Cross multiply
    403,943.22x = 557,442.75 × 242,890.50
  4. Step 4: Simplify right side
    403,943.22x = 135,397,548,268.88
  5. Step 5: Solve for x
    x = 135,397,548,268.88/403,943.22
  6. Step 6: Final answer
    x = 335,189.56

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1.5x scale

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.