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Finding the Fourth Proportional to 275,260.40, 413,149.80 and 170,284.40

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Solution

The fourth proportional to 275,260.40, 413,149.80 and 170,284.40 is: 255,586.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,260.40 : 413,149.80 = 170,284.40 : x
  2. Step 2: Convert to fraction form
    275,260.40/413,149.80 = 170,284.40/x
  3. Step 3: Cross multiply
    275,260.40x = 413,149.80 × 170,284.40
  4. Step 4: Simplify right side
    275,260.40x = 70,352,965,803.12
  5. Step 5: Solve for x
    x = 70,352,965,803.12/275,260.40
  6. Step 6: Final answer
    x = 255,586.95

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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.