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Finding the Fourth Proportional to 281,325.92, 388,220.04 and 160,506.32

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Solution

The fourth proportional to 281,325.92, 388,220.04 and 160,506.32 is: 221,493.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,325.92 : 388,220.04 = 160,506.32 : x
  2. Step 2: Convert to fraction form
    281,325.92/388,220.04 = 160,506.32/x
  3. Step 3: Cross multiply
    281,325.92x = 388,220.04 × 160,506.32
  4. Step 4: Simplify right side
    281,325.92x = 62,311,769,970.65
  5. Step 5: Solve for x
    x = 62,311,769,970.65/281,325.92
  6. Step 6: Final answer
    x = 221,493.17

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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.