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Finding the Fourth Proportional to 324,178.64, 447,391.88 and 180,960.20

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Solution

The fourth proportional to 324,178.64, 447,391.88 and 180,960.20 is: 249,739.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,178.64 : 447,391.88 = 180,960.20 : x
  2. Step 2: Convert to fraction form
    324,178.64/447,391.88 = 180,960.20/x
  3. Step 3: Cross multiply
    324,178.64x = 447,391.88 × 180,960.20
  4. Step 4: Simplify right side
    324,178.64x = 80,960,124,083.18
  5. Step 5: Solve for x
    x = 80,960,124,083.18/324,178.64
  6. Step 6: Final answer
    x = 249,739.23

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1.5x scale

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.