Home / 268,639.14-370,719.34-147,780.57

Finding the Fourth Proportional to 268,639.14, 370,719.34 and 147,780.57

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Solution

The fourth proportional to 268,639.14, 370,719.34 and 147,780.57 is: 203,935.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,639.14 : 370,719.34 = 147,780.57 : x
  2. Step 2: Convert to fraction form
    268,639.14/370,719.34 = 147,780.57/x
  3. Step 3: Cross multiply
    268,639.14x = 370,719.34 × 147,780.57
  4. Step 4: Simplify right side
    268,639.14x = 54,785,115,375.22
  5. Step 5: Solve for x
    x = 54,785,115,375.22/268,639.14
  6. Step 6: Final answer
    x = 203,935.72

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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.