Home / 281,835.56-388,922.76-154,508.36

Finding the Fourth Proportional to 281,835.56, 388,922.76 and 154,508.36

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Solution

The fourth proportional to 281,835.56, 388,922.76 and 154,508.36 is: 213,215.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,835.56 : 388,922.76 = 154,508.36 : x
  2. Step 2: Convert to fraction form
    281,835.56/388,922.76 = 154,508.36/x
  3. Step 3: Cross multiply
    281,835.56x = 388,922.76 × 154,508.36
  4. Step 4: Simplify right side
    281,835.56x = 60,091,817,814.27
  5. Step 5: Solve for x
    x = 60,091,817,814.27/281,835.56
  6. Step 6: Final answer
    x = 213,215.88

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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.