Home / 447,405.14-671,212.81-147,885.72

Finding the Fourth Proportional to 447,405.14, 671,212.81 and 147,885.72

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Solution

The fourth proportional to 447,405.14, 671,212.81 and 147,885.72 is: 221,863.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,405.14 : 671,212.81 = 147,885.72 : x
  2. Step 2: Convert to fraction form
    447,405.14/671,212.81 = 147,885.72/x
  3. Step 3: Cross multiply
    447,405.14x = 671,212.81 × 147,885.72
  4. Step 4: Simplify right side
    447,405.14x = 99,262,787,347.88
  5. Step 5: Solve for x
    x = 99,262,787,347.88/447,405.14
  6. Step 6: Final answer
    x = 221,863.32

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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.