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Finding the Fourth Proportional to 344,036.36, 515,784.13 and 217,410.28

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Solution

The fourth proportional to 344,036.36, 515,784.13 and 217,410.28 is: 325,944.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,036.36 : 515,784.13 = 217,410.28 : x
  2. Step 2: Convert to fraction form
    344,036.36/515,784.13 = 217,410.28/x
  3. Step 3: Cross multiply
    344,036.36x = 515,784.13 × 217,410.28
  4. Step 4: Simplify right side
    344,036.36x = 112,136,772,122.86
  5. Step 5: Solve for x
    x = 112,136,772,122.86/344,036.36
  6. Step 6: Final answer
    x = 325,944.54

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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.