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Finding the Fourth Proportional to 281,080.79, 388,078.59 and 166,396.32

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Solution

The fourth proportional to 281,080.79, 388,078.59 and 166,396.32 is: 229,737.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,080.79 : 388,078.59 = 166,396.32 : x
  2. Step 2: Convert to fraction form
    281,080.79/388,078.59 = 166,396.32/x
  3. Step 3: Cross multiply
    281,080.79x = 388,078.59 × 166,396.32
  4. Step 4: Simplify right side
    281,080.79x = 64,574,849,246.79
  5. Step 5: Solve for x
    x = 64,574,849,246.79/281,080.79
  6. Step 6: Final answer
    x = 229,737.69

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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.