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Finding the Fourth Proportional to 403,873.40, 557,342.70 and 222,585.50

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Solution

The fourth proportional to 403,873.40, 557,342.70 and 222,585.50 is: 307,166.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,873.40 : 557,342.70 = 222,585.50 : x
  2. Step 2: Convert to fraction form
    403,873.40/557,342.70 = 222,585.50/x
  3. Step 3: Cross multiply
    403,873.40x = 557,342.70 × 222,585.50
  4. Step 4: Simplify right side
    403,873.40x = 124,056,403,550.85
  5. Step 5: Solve for x
    x = 124,056,403,550.85/403,873.40
  6. Step 6: Final answer
    x = 307,166.56

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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.