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Finding the Fourth Proportional to 401,601.60, 554,188.80 and 231,825.60

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Solution

The fourth proportional to 401,601.60, 554,188.80 and 231,825.60 is: 319,906.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,601.60 : 554,188.80 = 231,825.60 : x
  2. Step 2: Convert to fraction form
    401,601.60/554,188.80 = 231,825.60/x
  3. Step 3: Cross multiply
    401,601.60x = 554,188.80 × 231,825.60
  4. Step 4: Simplify right side
    401,601.60x = 128,475,151,073.28
  5. Step 5: Solve for x
    x = 128,475,151,073.28/401,601.60
  6. Step 6: Final answer
    x = 319,906.97

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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.