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Finding the Fourth Proportional to 281,329.80, 388,237.71 and 166,614.96

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Solution

The fourth proportional to 281,329.80, 388,237.71 and 166,614.96 is: 229,930.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,329.80 : 388,237.71 = 166,614.96 : x
  2. Step 2: Convert to fraction form
    281,329.80/388,237.71 = 166,614.96/x
  3. Step 3: Cross multiply
    281,329.80x = 388,237.71 × 166,614.96
  4. Step 4: Simplify right side
    281,329.80x = 64,686,210,522.14
  5. Step 5: Solve for x
    x = 64,686,210,522.14/281,329.80
  6. Step 6: Final answer
    x = 229,930.18

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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.