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Finding the Fourth Proportional to 303,246.30, 454,978.80 and 125,807.70

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Solution

The fourth proportional to 303,246.30, 454,978.80 and 125,807.70 is: 188,756.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,246.30 : 454,978.80 = 125,807.70 : x
  2. Step 2: Convert to fraction form
    303,246.30/454,978.80 = 125,807.70/x
  3. Step 3: Cross multiply
    303,246.30x = 454,978.80 × 125,807.70
  4. Step 4: Simplify right side
    303,246.30x = 57,239,836,376.76
  5. Step 5: Solve for x
    x = 57,239,836,376.76/303,246.30
  6. Step 6: Final answer
    x = 188,756.92

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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.