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Finding the Fourth Proportional to 368,999.92, 509,222.43 and 205,666.95

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Solution

The fourth proportional to 368,999.92, 509,222.43 and 205,666.95 is: 283,821.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,999.92 : 509,222.43 = 205,666.95 : x
  2. Step 2: Convert to fraction form
    368,999.92/509,222.43 = 205,666.95/x
  3. Step 3: Cross multiply
    368,999.92x = 509,222.43 × 205,666.95
  4. Step 4: Simplify right side
    368,999.92x = 104,730,225,188.02
  5. Step 5: Solve for x
    x = 104,730,225,188.02/368,999.92
  6. Step 6: Final answer
    x = 283,821.81

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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.