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Finding the Fourth Proportional to 218,392.65, 301,384.83 and 127,801.62

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Solution

The fourth proportional to 218,392.65, 301,384.83 and 127,801.62 is: 176,367.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,392.65 : 301,384.83 = 127,801.62 : x
  2. Step 2: Convert to fraction form
    218,392.65/301,384.83 = 127,801.62/x
  3. Step 3: Cross multiply
    218,392.65x = 301,384.83 × 127,801.62
  4. Step 4: Simplify right side
    218,392.65x = 38,517,469,517.42
  5. Step 5: Solve for x
    x = 38,517,469,517.42/218,392.65
  6. Step 6: Final answer
    x = 176,367.98

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1.5x scale

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.