Home / 200,423.47-276,584.51-109,780.95

Finding the Fourth Proportional to 200,423.47, 276,584.51 and 109,780.95

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Solution

The fourth proportional to 200,423.47, 276,584.51 and 109,780.95 is: 151,497.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,423.47 : 276,584.51 = 109,780.95 : x
  2. Step 2: Convert to fraction form
    200,423.47/276,584.51 = 109,780.95/x
  3. Step 3: Cross multiply
    200,423.47x = 276,584.51 × 109,780.95
  4. Step 4: Simplify right side
    200,423.47x = 30,363,710,957.21
  5. Step 5: Solve for x
    x = 30,363,710,957.21/200,423.47
  6. Step 6: Final answer
    x = 151,497.78

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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.