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Finding the Fourth Proportional to 344,004.80, 515,569.80 and 306,388.40

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Solution

The fourth proportional to 344,004.80, 515,569.80 and 306,388.40 is: 459,193.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,004.80 : 515,569.80 = 306,388.40 : x
  2. Step 2: Convert to fraction form
    344,004.80/515,569.80 = 306,388.40/x
  3. Step 3: Cross multiply
    344,004.80x = 515,569.80 × 306,388.40
  4. Step 4: Simplify right side
    344,004.80x = 157,964,606,110.32
  5. Step 5: Solve for x
    x = 157,964,606,110.32/344,004.80
  6. Step 6: Final answer
    x = 459,193.03

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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.