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Finding the Fourth Proportional to 275,422.60, 413,133.90 and 191,004.40

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Solution

The fourth proportional to 275,422.60, 413,133.90 and 191,004.40 is: 286,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,422.60 : 413,133.90 = 191,004.40 : x
  2. Step 2: Convert to fraction form
    275,422.60/413,133.90 = 191,004.40/x
  3. Step 3: Cross multiply
    275,422.60x = 413,133.90 × 191,004.40
  4. Step 4: Simplify right side
    275,422.60x = 78,910,392,689.16
  5. Step 5: Solve for x
    x = 78,910,392,689.16/275,422.60
  6. Step 6: Final answer
    x = 286,506.60

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1.5x scale

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.