Home / 447,210.21-670,881.78-147,722.43

Finding the Fourth Proportional to 447,210.21, 670,881.78 and 147,722.43

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Solution

The fourth proportional to 447,210.21, 670,881.78 and 147,722.43 is: 221,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,210.21 : 670,881.78 = 147,722.43 : x
  2. Step 2: Convert to fraction form
    447,210.21/670,881.78 = 147,722.43/x
  3. Step 3: Cross multiply
    447,210.21x = 670,881.78 × 147,722.43
  4. Step 4: Simplify right side
    447,210.21x = 99,104,286,784.33
  5. Step 5: Solve for x
    x = 99,104,286,784.33/447,210.21
  6. Step 6: Final answer
    x = 221,605.60

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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.