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Finding the Fourth Proportional to 281,347.02, 388,446.84 and 166,662.77

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Solution

The fourth proportional to 281,347.02, 388,446.84 and 166,662.77 is: 230,105.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,347.02 : 388,446.84 = 166,662.77 : x
  2. Step 2: Convert to fraction form
    281,347.02/388,446.84 = 166,662.77/x
  3. Step 3: Cross multiply
    281,347.02x = 388,446.84 × 166,662.77
  4. Step 4: Simplify right side
    281,347.02x = 64,739,624,409.91
  5. Step 5: Solve for x
    x = 64,739,624,409.91/281,347.02
  6. Step 6: Final answer
    x = 230,105.95

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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.