Home / 281,832.39-388,928.70-154,508.88

Finding the Fourth Proportional to 281,832.39, 388,928.70 and 154,508.88

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Solution

The fourth proportional to 281,832.39, 388,928.70 and 154,508.88 is: 213,222.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,832.39 : 388,928.70 = 154,508.88 : x
  2. Step 2: Convert to fraction form
    281,832.39/388,928.70 = 154,508.88/x
  3. Step 3: Cross multiply
    281,832.39x = 388,928.70 × 154,508.88
  4. Step 4: Simplify right side
    281,832.39x = 60,092,937,836.86
  5. Step 5: Solve for x
    x = 60,092,937,836.86/281,832.39
  6. Step 6: Final answer
    x = 213,222.26

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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.