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Finding the Fourth Proportional to 447,233.04, 670,917.60 and 147,745.28

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Solution

The fourth proportional to 447,233.04, 670,917.60 and 147,745.28 is: 221,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,233.04 : 670,917.60 = 147,745.28 : x
  2. Step 2: Convert to fraction form
    447,233.04/670,917.60 = 147,745.28/x
  3. Step 3: Cross multiply
    447,233.04x = 670,917.60 × 147,745.28
  4. Step 4: Simplify right side
    447,233.04x = 99,124,908,668.93
  5. Step 5: Solve for x
    x = 99,124,908,668.93/447,233.04
  6. Step 6: Final answer
    x = 221,640.40

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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.