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Finding the Fourth Proportional to 361,992.84, 499,622.81 and 209,055.93

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Solution

The fourth proportional to 361,992.84, 499,622.81 and 209,055.93 is: 288,539.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,992.84 : 499,622.81 = 209,055.93 : x
  2. Step 2: Convert to fraction form
    361,992.84/499,622.81 = 209,055.93/x
  3. Step 3: Cross multiply
    361,992.84x = 499,622.81 × 209,055.93
  4. Step 4: Simplify right side
    361,992.84x = 104,449,111,193.76
  5. Step 5: Solve for x
    x = 104,449,111,193.76/361,992.84
  6. Step 6: Final answer
    x = 288,539.16

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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.