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Finding the Fourth Proportional to 403,887.96, 557,288.62 and 242,684.19

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Solution

The fourth proportional to 403,887.96, 557,288.62 and 242,684.19 is: 334,858.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,887.96 : 557,288.62 = 242,684.19 : x
  2. Step 2: Convert to fraction form
    403,887.96/557,288.62 = 242,684.19/x
  3. Step 3: Cross multiply
    403,887.96x = 557,288.62 × 242,684.19
  4. Step 4: Simplify right side
    403,887.96x = 135,245,137,340.92
  5. Step 5: Solve for x
    x = 135,245,137,340.92/403,887.96
  6. Step 6: Final answer
    x = 334,858.06

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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.