Home / 281,695.14-388,742.36-154,368

Finding the Fourth Proportional to 281,695.14, 388,742.36 and 154,368

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Solution

The fourth proportional to 281,695.14, 388,742.36 and 154,368 is: 213,029.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,695.14 : 388,742.36 = 154,368 : x
  2. Step 2: Convert to fraction form
    281,695.14/388,742.36 = 154,368/x
  3. Step 3: Cross multiply
    281,695.14x = 388,742.36 × 154,368
  4. Step 4: Simplify right side
    281,695.14x = 60,009,379,856.64
  5. Step 5: Solve for x
    x = 60,009,379,856.64/281,695.14
  6. Step 6: Final answer
    x = 213,029.52

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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.