Home / 379,821.20-524,095.04-218,645.11

Finding the Fourth Proportional to 379,821.20, 524,095.04 and 218,645.11

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Solution

The fourth proportional to 379,821.20, 524,095.04 and 218,645.11 is: 301,696.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,821.20 : 524,095.04 = 218,645.11 : x
  2. Step 2: Convert to fraction form
    379,821.20/524,095.04 = 218,645.11/x
  3. Step 3: Cross multiply
    379,821.20x = 524,095.04 × 218,645.11
  4. Step 4: Simplify right side
    379,821.20x = 114,590,815,267.79
  5. Step 5: Solve for x
    x = 114,590,815,267.79/379,821.20
  6. Step 6: Final answer
    x = 301,696.73

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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.