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Finding the Fourth Proportional to 368,243.46, 508,004.39 and 239,172.80

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Solution

The fourth proportional to 368,243.46, 508,004.39 and 239,172.80 is: 329,947.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,243.46 : 508,004.39 = 239,172.80 : x
  2. Step 2: Convert to fraction form
    368,243.46/508,004.39 = 239,172.80/x
  3. Step 3: Cross multiply
    368,243.46x = 508,004.39 × 239,172.80
  4. Step 4: Simplify right side
    368,243.46x = 121,500,830,426.50
  5. Step 5: Solve for x
    x = 121,500,830,426.50/368,243.46
  6. Step 6: Final answer
    x = 329,947.02

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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.