Home / 343,815.15-515,722.73-217,843.95

Finding the Fourth Proportional to 343,815.15, 515,722.73 and 217,843.95

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Solution

The fourth proportional to 343,815.15, 515,722.73 and 217,843.95 is: 326,765.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,815.15 : 515,722.73 = 217,843.95 : x
  2. Step 2: Convert to fraction form
    343,815.15/515,722.73 = 217,843.95/x
  3. Step 3: Cross multiply
    343,815.15x = 515,722.73 × 217,843.95
  4. Step 4: Simplify right side
    343,815.15x = 112,347,075,518.76
  5. Step 5: Solve for x
    x = 112,347,075,518.76/343,815.15
  6. Step 6: Final answer
    x = 326,765.93

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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.