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Finding the Fourth Proportional to 281,801.99, 388,913.67 and 160,961.33

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Solution

The fourth proportional to 281,801.99, 388,913.67 and 160,961.33 is: 222,142.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,801.99 : 388,913.67 = 160,961.33 : x
  2. Step 2: Convert to fraction form
    281,801.99/388,913.67 = 160,961.33/x
  3. Step 3: Cross multiply
    281,801.99x = 388,913.67 × 160,961.33
  4. Step 4: Simplify right side
    281,801.99x = 62,600,059,633.81
  5. Step 5: Solve for x
    x = 62,600,059,633.81/281,801.99
  6. Step 6: Final answer
    x = 222,142.01

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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.