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Finding the Fourth Proportional to 270,468.52, 405,172.86 and 128,035.24

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Solution

The fourth proportional to 270,468.52, 405,172.86 and 128,035.24 is: 191,802.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,468.52 : 405,172.86 = 128,035.24 : x
  2. Step 2: Convert to fraction form
    270,468.52/405,172.86 = 128,035.24/x
  3. Step 3: Cross multiply
    270,468.52x = 405,172.86 × 128,035.24
  4. Step 4: Simplify right side
    270,468.52x = 51,876,404,371.59
  5. Step 5: Solve for x
    x = 51,876,404,371.59/270,468.52
  6. Step 6: Final answer
    x = 191,802.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.