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Finding the Fourth Proportional to 403,957, 557,457.60 and 222,668.92

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Solution

The fourth proportional to 403,957, 557,457.60 and 222,668.92 is: 307,281.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,957 : 557,457.60 = 222,668.92 : x
  2. Step 2: Convert to fraction form
    403,957/557,457.60 = 222,668.92/x
  3. Step 3: Cross multiply
    403,957x = 557,457.60 × 222,668.92
  4. Step 4: Simplify right side
    403,957x = 124,128,481,737.79
  5. Step 5: Solve for x
    x = 124,128,481,737.79/403,957
  6. Step 6: Final answer
    x = 307,281.42

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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.