Home / 281,847.12-388,968.66-154,530.93

Finding the Fourth Proportional to 281,847.12, 388,968.66 and 154,530.93

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Solution

The fourth proportional to 281,847.12, 388,968.66 and 154,530.93 is: 213,263.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,847.12 : 388,968.66 = 154,530.93 : x
  2. Step 2: Convert to fraction form
    281,847.12/388,968.66 = 154,530.93/x
  3. Step 3: Cross multiply
    281,847.12x = 388,968.66 × 154,530.93
  4. Step 4: Simplify right side
    281,847.12x = 60,107,688,770.65
  5. Step 5: Solve for x
    x = 60,107,688,770.65/281,847.12
  6. Step 6: Final answer
    x = 213,263.45

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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.