Home / 281,016.40-421,439.64-147,823.24

Finding the Fourth Proportional to 281,016.40, 421,439.64 and 147,823.24

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Solution

The fourth proportional to 281,016.40, 421,439.64 and 147,823.24 is: 221,690.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,016.40 : 421,439.64 = 147,823.24 : x
  2. Step 2: Convert to fraction form
    281,016.40/421,439.64 = 147,823.24/x
  3. Step 3: Cross multiply
    281,016.40x = 421,439.64 × 147,823.24
  4. Step 4: Simplify right side
    281,016.40x = 62,298,573,049.23
  5. Step 5: Solve for x
    x = 62,298,573,049.23/281,016.40
  6. Step 6: Final answer
    x = 221,690.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.