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Finding the Fourth Proportional to 344,553.60, 515,955.60 and 328,807.20

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Solution

The fourth proportional to 344,553.60, 515,955.60 and 328,807.20 is: 492,375.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,553.60 : 515,955.60 = 328,807.20 : x
  2. Step 2: Convert to fraction form
    344,553.60/515,955.60 = 328,807.20/x
  3. Step 3: Cross multiply
    344,553.60x = 515,955.60 × 328,807.20
  4. Step 4: Simplify right side
    344,553.60x = 169,649,916,160.32
  5. Step 5: Solve for x
    x = 169,649,916,160.32/344,553.60
  6. Step 6: Final answer
    x = 492,375.98

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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.