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Finding the Fourth Proportional to 281,808.20, 388,923.14 and 160,967.56

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Solution

The fourth proportional to 281,808.20, 388,923.14 and 160,967.56 is: 222,151.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,808.20 : 388,923.14 = 160,967.56 : x
  2. Step 2: Convert to fraction form
    281,808.20/388,923.14 = 160,967.56/x
  3. Step 3: Cross multiply
    281,808.20x = 388,923.14 × 160,967.56
  4. Step 4: Simplify right side
    281,808.20x = 62,604,008,873.34
  5. Step 5: Solve for x
    x = 62,604,008,873.34/281,808.20
  6. Step 6: Final answer
    x = 222,151.13

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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.